At which of the following Open Systems Interconnection (OSI) model layers would a router operate? (ID-NTIA-418)

A technician is sent to a remote office to set up a device to connect to the Internet. The company standards document requires stateful inspection. Which of the following should the technician install? (ID-NTIA-519)

A network administrator is going to be performing a major upgrade to the network. Which of the following should the administrator use in case of a failure? (ID-NTIA-442)

Which of the following BEST describes the Border Gateway Protocol (BGP) routing protocol? (ID-NTIA-401)

A switch has detected duplicate broadcast messages sourced from a second port. The broadcasts continue to be transmitted and duplicated until the amount of traffic causes severe performance issues. Which of the following should be configured to prevent this behavior? (ID-NTIA-412)

Which of the following is used to provide hot standby capabilities using paired routers? (ID-NTIA-512)

Which of the following physical LAN topologies requires the most cabling? (ID-NTIA-444)

A network technician wants to address PCs on a subnet with IPv6 in addition to IPv4. The subnet currently uses a DHCP server that only supports IPv4. Which of the following should the technician use to assign IPv6 addresses automatically without DHCP? (ID-NTIA-476)

A network technician is installing a new wireless network in a small office. Due to environmental concerns, the customer wants the network to run exclusively on the 5GHz frequency. Which of the following wireless technologies should the technician install to best meet this requirement? Choose all correct answers. (ID-NTIA-439)

Which of the following should be performed to verify that unnecessary services are disabled on all switches in an environment? (ID-NTIA-402)

An attacker has flooded the hardware tables of a switch to forward traffic to the attacker’s IP address rather than the default router. The traffic received is copied in real-time, and then forwarded to the default router transparently from the end-user perspective. Which of the following attacks are occurring in this scenario? Select all correct answers. (ID-NTIA-451)

Which of the following security threats relies primarily on user deception and misinformation? (ID-NTIA-459)

A content filter is set to analyze XML and JSON that users access from the Internet. At which of the following OSI (Open Systems Interconnection) layers is this analysis taking place? (ID-NTIA-441)

A technician is reviewing network device logs in an attempt to trace an attack that occurred on the network. Which of the following protocols would affect whether or not the technician can properly trace the attack through the network using the logs? (ID-NTIA-531)

A network administrator is redesigning network security after an attack. During the attack, an attacker used open cubicle locations to attach devices to the network. The administrator wants to be able to monitor future attacks in a safe environment and determine the method of attack. Which of the following should the administrator do to best meet this requirement? (ID-NTIA-428)

Which of the following network topologies allows only communication to take place from one node at a time by passing a token around the network? (ID-NTIA-488)

Which of the following addresses is a class B private address? (ID-NTIA-504)

Which of the following is networking stand-alone hardware that will permit any WiFi-compliant device to connect to a wired network? (ID-NTIA-437)

A network technician needs to address bandwidth issues on the wireless network. There are currently four 802.11n access points. The technician would like to increase the bandwidth. Which of the following would be the best solution? (ID-NTIA-468)

Ann, a network technician, has just installed a fiber switch in a datacenter. To run the fiber cabling, Ann plans the cable route over the top of the rack using the cable trays, down to the switch, coiling up any excess cable. As Ann configures the switch, she notices several messages in the logging buffer stating the receive signal of the SFP is too weak. Which of the following is MOST likely the cause of the errors in the logging buffer? (ID-NTIA-491)

A technician has replaced a customer’s desktop with a known-good model from storage. However, the replacement desktop will not connect to network resources. The technician suspects the desktop has not been kept up to date with security patches. Which of the following is most likely in place? (ID-NTIA-452)

A recently constructed building makes use of glass and natural light. Users in the building are reporting poor cellular connectivity and speeds. Which of the following is most likely the cause? (ID-NTIA-522)

An administrator is receiving reports from an executive that the executive’s wireless access point loses the signal frequently, even though the WAP is on the executive’s desk. The office contains four other 802.11n access points. Which of the following would most likely correct interference problems in the executive’s office? (ID-NTIA-467)

A network administrator is concerned about clients being able to access the local Internet while connected to the corporate VPN. Which of the following should be disabled on the client to prevent this? (ID-NTIA-475)

Which of the following is a proprietary routing protocol? (ID-NTIA-514)

Which of the following is based entirely on using ICMP packets? (ID-NTIA-469)

A network administrator wants to monitor traffic by deploying MIBs. Which of the follow network monitoring resources would be used? (ID-NTIA-454)

Which of the following should be implemented in a networked environment carrying teleconferencing packets? (ID-NTIA-457)

A technician is replacing a failed SOHO router for a customer who has an existing switch, cable modem, and static IP address. The user has a web server that faces the Internet so users can visit and leave comments. Which of the following BEST describes the correct configuration for this customer's requirements? (ID-NTIA-427)

Which of the following is BEST for providing real-time equipment theft alerts to the security staff? (ID-NTIA-532)

A network technician performs a wireless site survey at a company building and identifies that the cafeteria is not covered by a wireless signal. The cafeteria is located in a medium-size, square-shaped room. Which of the following types of WAP antenna should the technician install in the center of the cafeteria to provide the BEST coverage? (ID-NTIA-417)

Due to a missing network device, 802.11n clients currently have no way to connect to the network. Which of the following devices should be implemented to let the clients connect? (ID-NTIA-409)

Which of the following commands displays all environment and shell variables? (ID-NTIA-415)

You are tasked with creating a network that will accomplish the following requirements for company A. (ID-NTIA-507)
Requirements:
– The remote Sales Team must be able to connect to the corporate network.
– Each department must have ONLY two PCs and a server.
– Eqach department must be segmented from each other.
– The following VLANs have been designed:
— VLAN 2 Finance
— VLAN 12 Sales
— VLAN 22 Human Resources (HR)
– Routing for VLAN 12 is implemented on the router. Routing for VLAN 2 and VLAN 22 is on the switch.

According to the following network diagram for Company A, where would you place the Layer 2 and Layer 3 switches? Click on the image to enlarge.

Which of the following occurs when antenna gain is increased on an access point? (ID-NTIA-463)

Which of the following should be performed to verify that unnecessary services are disabled on all switches in an environment? (ID-NTIA-518)

A user wants to send information and ensure that it was not modified during transmission. Which of the following should be implemented? (ID-NTIA-516)

Which of the following could be used to stop unknown threats? (ID-NTIA-471)

Which of the following will listen on the line to ensure there is no traffic transmitting and implement a back-off timer if a collision occurs? (ID-NTIA-423)

An administrator is troubleshooting a user's intermittent wireless connectivity issue. Other users across the hallway can connect and use the wireless network properly. Upon inspection of the connection details, the administrator finds the following: (ID-NTIA-435)

SSID: SANUJA-WiFi
Signal: 5%
SNR: 2

Which of the following is most likely the cause of the poor wireless connection?

A technician is investigating the cause of a network outage. Which of the following documents should be checked to rule out configuration issues? (ID-NTIA-520)

What is the correct crimp out sequence of a cross-over pin out T568B RJ45 jack? (ID-NTIA-506)

In which of the following scenarios should a technician use a cross-over cable to provide connectivity? (ID-NTIA-408)

Which of the following devices are most often responsible for 802.1q tagging? Choose all correct answers. (ID-NTIA-438)

Which of the following uses types and codes rather than ports? (ID-NTIA-473)

A network technician is configuring user access to a VPN concentrator and has been advised to use a protocol that supports encryption over UDP. Which of the following protocols has the technician most likely configured for client use? (ID-NTIA-410)

A technician is observing brownout issues at a smaller office. At least once a week, the edge switch power cycles. Which of the following should the technician do to resolve the issue? (ID-NTIA-419)

A technician is sent to a remote office to set up a device to connect to the Internet. The company standards document requires stateful inspection. Which of the following should the technician install? (ID-NTIA-403)

In the following diagram, what is the type of optical fiber connector illustrated by III? (ID-NTIA-449)

The Chief Executive Officer’s (CEO’s) tablet cannot connect to the wireless network from the corner office. A network technician verified the tablet can connect to the wireless network in other areas of the building. The distance between the office and the 802.11ac WAP is 150ft (46m), and there are a few cubicles in between. Which of the following is the MOST likely cause of the tablet not connecting? (ID-NTIA-524)

You are tasked with creating a network that will accomplish the following requirements for company A. (ID-NTIA-508)
Requirements:
– The remote Sales Team must be able to connect to the corporate network.
– Each department must have ONLY two PCs and a server.
– Each department must be segmented from each other.
– The following VLANs have been designed:
— VLAN 2 Finance
— VLAN 12 Sales
— VLAN 22 Human Resources (HR)
– Routing for VLAN 12 is implemented on the router. Routing for VLAN 2 and VLAN 22 is on the switch.

According to the following network diagram for Company A, where should the router be palced? Click on the image to enlarge.

A technician is responsible for configuring a new firewall. The hardware team has already installed, powered, and connected the system. Which of the following types of documentation should the technician utilize to complete the task? (ID-NTIA-404)

Which of the following is a network device that is responsible for separating collision domains? (ID-NTIA-535)

Which of the following is a proprietary routing protocol? (ID-NTIA-489)

A network technician has implemented ACLs to limit access to cloud-based file storage. Which of the following security mechanisms has the technician enforced? (ID-NTIA-416)

In the following diagram, what is the type of optical fiber connector illustrated by I? (ID-NTIA-448)

What is the length of an IPv6 address? (ID-NTIA-482)

Which of the following is an invalid MAC address? (ID-NTIA-487)

Which of the following WAN technologies swaps the header on a packet when internally switching from one provider router to another? (ID-NTIA-481)

A disgruntled employee decides to leak critical information about a company’s new product. The employee places keyloggers on the department’s computers, allowing the information to be sent out to the Internet. Which of the following attacks is occurring? (ID-NTIA-521)

A new monitoring device is installed in the network that uses ping to determine whether critical network Internet routers are up. After three missing pings, the alarm reports the device is down. The device is now constantly reporting alarms, yet there are no reported Internet problems from users. Which of the following is the MOST likely cause? (ID-NTIA-530)

A technician is setting up VoIP phones on a wireless network. Users report that calls are choppy and sometimes dropped. The technician has measured two characteristics using simple command-line tools that verify the problem. Which of the following characteristics did the technician measure? Choose all correct answers. (ID-NTIA-425)

A second router was installed on a network to be used as a backup for the primary router that works as a gateway. The infrastructure team does not want to change the IP address of the gateway on the devices. Which of the following network components should be used in this scenario? (ID-NTIA-450)

Which of the following authentication methods is most secure? (ID-NTIA-517)

A technician is trying to configure a previously owned WAP. The technician successfully logs into the administrative console and attempts to input the IP address on the WAP. However, the WAP is not accepting the command. Which of the following is causing the problem? (ID-NTIA-492)

Homer Simpson, a technician, suspects a duplicate IP address assignment on the network. Which of the following resources can be used to verify this problem? (ID-NTIA-455)

A network technician notices that most of the nodes in the 10.10.74.0/23 address space return either 1 or 2 node hop after running a tracert, however, some of the new servers are showing a hop count larger than 10. Which of the following is the most likely reason for this? (ID-NTIA-479)

A company wants the public to be able to connect to the wireless network with minimal security, but not be able to connect to the private internal network. Which of the following firewall rules would BEST accomplish this? (ID-NTIA-464)

An 801.11g wireless access point was configured as follows: (ID-NTIA-465)
- AP encryption forced to WPA2-AES mode only
- MAC address filtering enabled with the following MAC address in the allow list: 00-ab-29-da-c3-40
Which is true about the above configuration?

A network technician receives a call from a branch office about a problem with its wireless connectivity. The user states the office is hosting a large meeting that includes some online training with local businesses. The guest users have all brought devices to connect to the guest network at the branch office. All users are connected to a single WAP and are reporting that connections keep dropping and network spends are unusable. Which of the following is the most likely cause of this issue? (ID-NTIA-424)

Which of the following must be kept synchronized in order for Kerberos to work? (ID-NTIA-490)

Which of the following concepts would BEST describe when a company chooses to use a third-party vendor to host and administer a critical application? (ID-NTIA-440)

No link lights on a switch’s SFP are functioning, so the network technician re-terminates the end. After testing the cable, the tester is showing a db loss of-9. Which of the following types of cable is most likely being tested? (ID-NTIA-528)

An administrator has received a recommendation against deploying WEP as a wireless encryption protection scheme. Which of the following is MOST likely the reason? (ID-NTIA-527)

A technician notices that network access is becoming increasingly slow. All of the activity lights, on the only network layer 2 switch, are blinking at steadily increasing rates. Which of the following is the most likely cause of the increased traffic? (ID-NTIA-456)

All users on a specific network segment report losing access to the wired network. During troubleshooting, the network administrator observes link lights on the workstations. When physically reviewing each switch, the network administrator changes the switch view settings to Activity and sees that all port lights remain solid green. Which of the following is most likely causing this issue? (ID-NTIA-501)

A technician needs to install a new wireless encryption system. They are evaluating the feasibility of implementing WPA. WPA increases protection over WEP by implementing which of the following? (ID-NTIA-495)

A network technician is installing a new SOHO branch office that requires the use of a DOCSIS-compatible modem. The modem needs to be connected to the ISP's network at the demarc. Which of the following cable types should be used? (ID-NTIA-431)

Which of the following provides two-factor authentication? (ID-NTIA-420)

A network administrator wants to narrow the scope of a subnet to two usable IP addresses within a class C network. Which of the following is the correct CIDR notation? (ID-NTIA-478)

A network technician is installing a new network switch in the MDF. The technician is using fiber to connect the switch back to the core. Which of the following transceiver types should the technician use? (ID-NTIA-453)

A technician has a remote site that often has congestion issues. When this happens, the remote router cannot be managed using SSH because the session drops. Which of the following is a possible solution to the issue? (ID-NTIA-480)

Which of the following is the prefix for a link-local IPv6 address? (ID-NTIA-458)

In the following diagram, what is the type of optical fiber connector illustrated by IV? (ID-NTIA-447)

A network technician is working on a new switch implementation to expand the network. Which of the following is the best option to ensure the implementation goes according to business requirements? (ID-NTIA-523)

A network technician needs to install a new access switch. After installing the new switch, the technician begins to move connections from the old switch to the new switch. The old switch used a GBIC with SC connectors, and the new switch uses an SFP with LC connectors. After connecting the SC connector to the SC- to-LC adapter and plugging it into the switch, the link does not come up as expected. Which of the following should a network technician perform next? (ID-NTIA-430)

A workstation on the network is configured as follows. A user reports that they are unable to print to a device located on a different subnet. Which of the following is the most likely problem? (ID-NTIA-470)
IP address: 172.16.204.12
Subnet Mask: 255.255.0.0
Default Gateway: 172.15.204.254
DNS address: 172.16.204.1
Broadcast address: 172.16.255.255

Manuja, an administrator, has set up an 802.11n wireless network. Users with 802.11n laptops have reported that speeds are slow. After testing, he determines that users max out at 802.11g speeds. Which of the following would most likely fix this issue? (ID-NTIA-461)

Which of the following technologies allows more than two transceivers with an access point? (ID-NTIA-462)

When querying a DNS server for an AAAA record, which of the following is an appropriate response? (ID-NTIA-474)

Which of the following is characterized by an attacker attempting to map out an organization’s staff hierarchy in order to send targeted emails? (ID-NTIA-472)

The phone company has provided a channelized T1 line. Which of the following should this line be connected to? (ID-NTIA-493)

Which of the following allows a central point to simultaneously address other points without addressing all of them? (ID-NTIA-486)

Which of the following are characteristics of jumbo frames? Choose all correct answers. (ID-NTIA-421)

A technician is troubleshooting network connectivity issues with a remote host. Which of the following tools would BEST inform the technician of nodes between the client and the remote host? (ID-NTIA-422)

Users report that they are unable to access the production server with IP address 192.168.30.17. These users need to be provided access without changing any subnet to VLAN information. The VLANs configured on the network are listed below: (ID-NTIA-484)
Department-VLAN#-Subnet used
Marketing-20-192.168.20.0/28
Customer Service-25-192.168.20.64/28
Finance-30-192.168.30.0/28
WHSE-35-192.168.30.16/28
Sales-40-192.168.3.16/28
The users experiencing this issue need to be added to which of the following VLANs?

A technician needs to limit the amount of broadcast traffic on a network and allow different segments to communicate with each other. Which of the following options would satisfy these requirements? (ID-NTIA-526)

Which of the following is the purpose of a VLAN? (ID-NTIA-513)

A network technician recently installed a new server on a network. The technician must ensure the server does not have any unnecessary services running. The IP address of the server is 204.211.38.50. Which of the following commands would allow the technician to make this determination? (ID-NTIA-433)

Which of the following ports should a network technician open on a firewall to back up the configuration and operating system files of a router to a remote server using the fastest method possible? (ID-NTIA-426)

What is the function of the tool shown in the following figure? (ID-NTIA-505)

Image Credit: https://www.amazon.ca/

While logged into a financial application, a user gets errors when trying to write to the database. The network administrator is not familiar with the application and how it communicates with the database. Which of the following documentation types should the network administrator use to troubleshoot the data flow? (ID-NTIA-477)

Which of the following BEST describes how a layer 2 switch functions? (ID-NTIA-510)

A technician is utilizing SNMPv3 to monitor network statistics. Which of the following actions would occur immediately of a server's utilization spikes above the prescribed value? (ID-NTIA-407)

Which of the following solutions will detect and disable a rogue access point? (ID-NTIA-460)

Which of the following must be installed on an employee’s computer if the remote access VPN implements an SSL VPN with PKI authentication? (ID-NTIA-483)

A network technician needs to set up an access method for Ann, a manager, to work from home. Ann needs to locally mapped corporate resources such as network drives to perform her job. Which of the following would provide secure access to corporate resources? (ID-NTIA-405)

A company has just refreshed the hardware in its datacenter with new 10G Ethernet switches. A technician wishes to set up a new storage area network but must use existing infrastructure. Which of the following storage standards should the technician use? (ID-NTIA-429)

In the following diagram, what is the type of optical fiber connector illustrated by II? (ID-NTIA-446)

Which of the following topologies offers the highest level of redundancy? (ID-NTIA-445)

A Chief Information Officer (CIO) is concentrated about an attacker gaining administrative access to the company's network devices. Which of the following is the most secure way to prevent this? (ID-NTIA-411)

A web application is unable to authenticate customers so they can access their bills. The server administrator has tested the LDAP query but is not receiving results. Which of the following is the NEXT step the server administrator should take to correct the problem? (ID-NTIA-436)

Management has requested that services be available within 72 hours of a disaster. Budget is a major concern. A contract is signed with a company that has plenty of space, and the technician will have the option of putting infrastructure equipment in place. Which of the following best describes this business continuity strategy? (ID-NTIA-413)

Which of the following DNS record types is an alias? (ID-NTIA-406)

A wireless client is having issues staying connected to the wireless network even though the client is less than 20ft (6m) from the access point. Which if the following is most likely the cause? (ID-NTIA-534)

What type of network application would you expect to find the following connector? Click on image to enlarge. (ID-NTIA-443)

A technician needs to order cable that meets 10GBaseT and fire safety requirements for an installation between a drop ceiling and a standard ceiling. Which of the following should the technician order to ensure compliance with the requirements? (ID-NTIA-432)

Tenants access multiple wireless networks in a building. Users report intermittent connectivity. Which of the following is the most likely cause of the problem? (ID-NTIA-511)

MIMO technology in the 802.11n standard provides for which of the following benefits? (ID-NTIA-500)

Joe, an employee at a large regional bank, wants to receive company email on his personal smartphone and tablet. To authenticate on the mail server, he must first install a custom security application on those mobile devices. Which of the following policies would best enforce this requirement? (ID-NTIA-434)

An administrator would like to search for network vulnerabilities on servers, routers, and embedded appliances. Which of the following tools would most likely accomplish this? (ID-NTIA-494)

A network administrator currently collects log files from several different servers. Which of the following would allow the network administrator to collect log files on a centralized host? (ID-NTIA-496)

Which of the following STP states indicates an inactivated port due to a loop? (ID-NTIA-502)

A network technician needs to install an additional access point to the company’s wireless network. The network has two 802.11b access points. Which of the following channels should be used to allow the access point’s coverage areas to overlap? (ID-NTIA-466)

A development team has been testing a web server on a virtual server to create a web application. Once satisfied, the development team clones the entire virtual server into production. The development team needs to use HTTP, HTTPS, and SSH to connect to the new server. Which of the following should the network administrator do to help secure this new production VM? Choose all correct answers. (ID-NTIA-533)

In a small office environment, one computer is set up to provide Internet access to three other computers that are not interconnected. This is an example of which of the following topology types? (ID-NTIA-485)

An administrator is trying to retrieve management information from the network devices on their LAN. Which of the following monitoring resources provides the ability to collect this information encrypted over the network? (ID-NTIA-497)

A technician is working on a new machine that has been procured for testing and development. The machine will run a hypervisor and host several operating systems of various types so the development team can test the company’s applications in a variety of environments. The technician wants the virtual machines to be available to communicate with each other without leaving the hypervisor. Which of the following is the best solution to the problem? (ID-NTIA-525)

Which of the following protocols is related to the term open relay? (ID-NTIA-414)

Users are reporting that all of a sudden some of the files stored on the remote file server share are becoming corrupted and cannot be opened. A technician is dispatched to the server room to troubleshoot. The technician verifies that no changes to the network infrastructure occurred recently. Which of the following tools is most likely to reveal why files are becoming corrupted? (ID-NTIA-499)

Which of the following WAN technologies utilizes an optical SONET carrier and has a maximum bandwidth of 155.54Mbps? (ID-NTIA-498)

You have been tasked with testing a CAT5 cable. A summary of the test results can be found on the following table. Which tool was used to create the cable test results? (ID-NTIA-509)

Cable	Test	Result
1.2	Open	7ft
3.6	Short	7ft
4.5	Open	7ft
7.8	Open	7ft

When configuring a new switch in a packet-switched network, which of the following helps protect against network loops? (ID-NTIA-503)

An organization recently installed a firewall on the network. Employees must have access to their work computer from their home computer. In which of the following ways should the firewall be configured? (ID-NTIA-515)

Two WAPs are positioned with overlapping coverage, but seamless roaming across them is not working. Which of the following should be checked? (ID-NTIA-529)