SSH port #

Kerberos port #

SMTP

SFTP port #

FTP Port #'s

TFTP Port #

DHCP port #'s

HTTP port #

NTP port #

LDAP port #

HTTPS port #

SNMP port #'s

RDP port #

SIP port #'s

SMB port #

POP(3) port #

IMAP port #

H.323 port #

The Open Systems Interconnection (OSI) model consists of:

Physical layer of the OSI model is also known as:

Which of the following protocols reside at the application layer of the OSI model? (Select 3 answers)

Which of the terms listed below refers to the OSI network layer?

Layer 6 of the OSI model is also referred to as:

In the OSI model, physical addressing takes place at the:

Which of the following reside at the physical layer of the OSI model? (Select 2 answers)

Character encoding, data compression and encryption/decryption take place at the:

Which OSI layer assumes responsibility for managing, establishing, and ending network connections between applications?

What is the name of a protocol data unit (PDU) used at the OSI physical layer?

In the OSI model, Media Access Control (MAC) and Logical Link Control (LLC) sublayers are the components of:

User Datagram Protocol (UDP) resides at: (Select 2 answers)

Which OSI layer is responsible for breaking up data into segments?

Routers operate at: (Select 2 answers)

Which of the following devices resides at the data link layer of the OSI model?

A technician is troubleshooting a wireless connectivity issue in a small office located in a high-rise building. Several APs are mounted in this office. The users report that the network connections frequently disconnect and reconnect throughout the day. Which of the following is the MOST likely cause of this issue?

A network engineer configured new firewalls with the correct configuration to be deployed to each remote branch. Unneeded services were disabled, and all firewall rules were applied successfully. Which of the following should the network engineer perform NEXT to ensure all the firewalls are hardened successfully?

At which of the following OSI model layers would a technician find an IP header?

An engineer is configuring redundant network links between switches. Which of the following should the engineer enable to prevent network stability issues?

Several WIFI users are reporting the inability to connect to the network. WLAN users on the guest network are able to access all network resources without any performance issues. The following table summarizes the findings after a site survey of the area in question:

Which of the following should a wireless technician do NEXT to troubleshoot this issue?

Which of the following routing protocols is used to exchange route information between public autonomous systems?

A fiber link connecting two campus networks is broken. Which of the following tools should an engineer use to detect the exact break point of the fiber link?

Which of the following can be used to centrally manage credentials for various types of administrative privileges on configured network devices?

A network technician is installing new software on a Windows-based server in a different geographical location. Which of the following would be BEST for the technician to use to perform this task?

Branch users are experiencing issues with videoconferencing. Which of the following will the company MOST likely configure to improve performance for these applications?

A technician is assisting a user who cannot connect to a network resource. The technician first checks for a link light. According to troubleshooting methodology, this is an example of:

Which of the following transceiver types can support up to 40Gbps?

Which of the following TCP ports is used by the Windows OS for file sharing?

A network administrator redesigned the positioning of the APs to create adjacent areas of wireless coverage. After project validation, some users still report poor connectivity when their devices maintain an association to a distanced AP. Which of the following should the network administrator check FIRST?

Which of the following connector types would have the MOST flexibility?

A network is experiencing a number of CRC errors during normal network communication. At which of the following layers of the OSI model will the administrator MOST likely start to troubleshoot?

Which of the following ports is a secure protocol?

A network administrator needs to set up a file server to allow user access. The organization uses DHCP to assign IP addresses. Which of the following is the best solution for the administrator to set up?

Which of the following does OSPF use to communicate routing updates?

A network administrator is configuring a new switch and wants to ensure that only assigned devices can connect to the switch. Which of the following should the administrator do?

Which of the following is most likely to be implemented to actively mitigate intrusions on a host device?

Which of the following passwords would provide the best defense against a brute-force attack?

Which of the following should a junior security administrator recommend implementing to mitigate malicious network activity?

A company is designing a new complex. The primary and alternate data centers will be in separate buildings 6.2mi (10km) apart and will be connected via fiber. Which of the following types of SFP is the best choice?

A network administrator needs to monitor traffic on a specific port on a switch. Which of the following should the administrator configure to accomplish the task?

A company, which is located in a coastal town, retrofitted an office building for a new data center. The underground fiber optics were brought in and connected to the switches in the basement network MDF. A server data center was built on the fifth floor with the two rooms vertically connected by fiber optics.

Which of the following types of environmental sensors is most needed?

Which of the following layers of the OSI model is responsible for end-to-end encryption?

Which of the following network topologies contains a direct connection between every node in the network?

A company’s VoIP phone connection is cutting in and out. Which of the following should be configured to resolve this issue?

A network administrator wants to implement an authentication process for temporary access to an organization’s network. Which of the following technologies would facilitate this process?

Which of the following best describe the functions of Layer 2 of the OSI model? (Choose two.)

A user took a laptop on a trip and made changes to the network parameters while at the airport. The user can access all internet websites but not corporate intranet websites.

Which of the following is the most likely cause of the issue?

After running a Cat 8 cable using passthrough plugs, an electrician notices that connected cables are experiencing a lot of cross talk. Which of the following troubleshooting steps should the electrician take first?

A network engineer designed and implemented a new office space with the following characteristics:

One month after the office space was implemented, users began reporting dropped signals when entering another room and overall poor connections to the 5GHz network.

Which of the following should the engineer do to best resolve the issue?

A network technician crimped a length of UTP with TIA\EIA-568A on one end and TIA\EIA-568B on the other. Which of the following cable types did the technician create?

A network administrator received reports that a 40Gb connection is saturated. The only server the administrator can use for data collection in that location has a 10GB connection to the network. Which of the following is the best method to use on the server to determine the source of the saturation?

Which of the following antenna types would most likely be used in a network repeater that is housed in a central point in a home office?

A network administrator requires redundant routers on the network, but only one default gateway is configurable on a workstation.

Which of the following will allow for redundant routers with a single IP address?

Which of the following is the most secure way to provide site-to-site connectivity?

Which of the following is the most cost-effective way for a network administrator to establish a persistent, secure connection between two facilities?

Users have reported an issue connecting to a server over the network. A workstation was recently added to the network and configured with a shared USB printer. Which of the following is most likely causing the issue?

A technician needs to set up a wireless connection that utilizes MIMO on non-overlapping channels. Which of the following would be the best

choice?

Which of the following cloud deployment models involves servers that are hosted at a company’s property and are only used by that company?

A customer needs to distribute Ethernet to multiple computers in an office. The customer would like to use non-proprietary standards. Which of the following blocks does the technician need to install?

A network technician discovered multiple failed logins on a production server. Upon investigation, the technician determined that a client plugged a personal laptop in to the corporate LAN, which allowed malware on the laptop to probe the network.

Which of the following would have prevented this unauthorized device?

A network technician is installing a wireless network in an office building. After performing a site survey, the technician determines the area is very saturated on the 2.4GHz and the 5GHz bands.

Which of the following wireless standards should the network technician implement?

While troubleshooting a network, a VoIP systems engineer discovers a significant inconsistency in the amount of time required for data to reach its destination and return.

Which of the following terms BEST describes this issue?

Two companies want to build an encrypted tunnel between them and use a PSK for initial authentication. Which of the following is the BEST protocol for the companies to use?

A new company moved into a corporate center. Users in the shared lobby are experiencing disconnects on their mobile devices. Which of the following is the BEST tool a network technician could use to troubleshoot the issue?

The results of a recently completed site survey indicate a significant, undesired RSSI in the parking lot and other exterior areas near the main building. The wireless technician would like to mitigate access to the wireless network in exterior access areas. The current access point settings are listed in the following table:

Which of the following is the BEST step for the technician to take to resolve the issue?

After upgrading to a SOHO router that supports Wi-Fi 6, the user determines throughput has not increased. Which of the following is the MOST likely cause of the issue?

A network technician wants to find the shortest path from one node to every other node in the network. Which of the following algorithms will provide the FASTEST convergence time?

A technician needs to allow a device to maintain the same IP address lease based on the physical address of a network card. Which of the following should the technician use?

Which of the following demarcation connections would be MOST appropriate to use with a cable modem being installed in a SOHO situation?

A network administrator is configuring a firewall to allow for a new cloud-based email server. The company standard is to use SMTP to route email traffic. Which of the following ports, by default, should be reserved for this purpose?

A technician is investigating a SAN switch that has a high number of CRC errors. Which of the following is the MOST likely cause of the errors?

A network administrator creates a new network, 10.10.0.0/24, on a DHCP server. The administrator wants to ensure that 10.10.0.10-10.10.0.15 are not allocated to other devices.

Which of the following features should the administrator configure?

A user stores large graphic files. The time required to transfer the files to the server is excessive due to network congestion. The user's budget does not allow for the current switches to be replaced.

Which of the following can be used to provide FASTER transfer times?

A network administrator is troubleshooting a PC that cannot connect to the LAN. The administrator runs the ipconfig command at the command prompt and gets the following output:

Which of the following is misconfigured?

A customer calls the help desk to report that users are unable to access any network resources. The issue started earlier in the day when an employee rearranged the wiring closet. A technician goes to the site but does not observe any obvious damage. The statistics output on the switch indicates high CPU usage, and all the lights on the switch are blinking rapidly in unison.

Which of the following is the MOST likely explanation for these symptoms?

A network technician receives a support ticket concerning multiple users who are unable to access the company's shared drive. The switch interface that the shared drive is connected to is displaying the following:

Which of the following is MOST likely the issue?

Which of the following focuses on application delivery?

A network technician is investigating a trouble ticket for a user who does not have network connectivity. All patch cables between the wall jacks and computers in the building were upgraded over the weekend from Cat 5 to Cat 6. The newly installed cable is crimped with a TIA/EIA 568A on one end and a TIA/EIA 568B on the other end. Which of the following should the technician do to MOST likely fix the issue?

Your tablet is not connecting to your wireless access point. You double-check and confirm that the access point is not showing up in the list of available connections. What could be the issue?

What router setting can you use to allow only the devices that you specify in the configuration to access the router?

What wifi channels are used in the US

Several staff members in the Customer Service department at your technology company are complaining that they cannot

What does RSSI stand for?

What command is used to trace the route a packet of information takes to get to its target.

Does wake on LAN allow you to start up a computer remotely?

Telnet is a protocol that allows you to connect to remote computers true or false

Which wireless communications protocol is an open source technology used primarily for home automation and operates in the same frequency band as many Wi-Fi networks?

You work for a small startup and are setting up the Small Office Home Office (SOHO) network security on the router. What actions should you take to improve the router’s security on the network?(Select all that apply.)

Users in your office complain of latency on the network. Which Windows networking tool can you use to investigate network paths?

You replace the Network adapter card on a user's laptop computer. To ensure maximum compatibility on various networks, you need to make sure the adapter is set to "autonegotiate" the network settings. How do you open the dialog box to verify this setting?

When you manually configure TCP/IP settings on a computer in a SOHO network, what address should you enter as the default gateway address?

What type of technology supports the use of signaling and bearer channels

The primary method of communication on the internet uses two sets of rules known as:

These 2 email retrieval protocols fetch message data and attachments from your remote mail server

This involves wireless devices having access to the network wirelessly

Is a specialized networking device connected to two or more networks running software that allows the router to move data from one network to another.

Is a device that channels incoming data from any of multiple input ports to the specific output port that will take the data toward its intended destination.

Is a type of cabling that is used for telephone communications and most modern Ethernet networks. A pair of wires forms a circuit that can transmit data.

Light signals are transmitted is this type of network media

What does HTTPS stand for?