TestOut Chapter 6
Your network follows the 1000Base-T specifications for Gigabit Ethernet. Which of the following is the MAXIMUM cable segment length allowed?
100 meters
Which type of fiber optic cable supports 10 Gigabit Ethernet with a maximum segment length of up to 40 km?
10GBaseER single-mode
Which of the following describes an IPv6 address? (Select TWO.)
128-bit address Eight hexadecimal quartets
Which of the following are valid IPv6 addresses? (Select TWO.)
141:0:0:0:15:0:0:1 6384:1319:7700:7631:446A:5511:8940:2552
Internet Message Access Protocol (IMAP)
143
Which of the following are not valid IP addresses? (Select THREE.)
145.8.260.7 257.0.122.55 45.22.156.256
Which of the following IP address ranges is reserved for Automatic Private IP Addressing?
169.254.0.1 - 169.254.255.254
Given that your Windows workstation has Automatic Private IP Addressing (APIPA) implemented using default settings, which of the following TCP/IP addresses could be automatically assigned to the system should your DHCP server go down or become inaccessible?
169.254.1.26
Which of the following are valid IP addresses? (Select TWO.)
2.2.2.2 172.16.1.26
An administrator configures a server to run the TCP/IP suite protocol that allows users to download files contained in specific directories on the server and also protects access to those files by requiring user authentication. Which of the following TCP/IP port numbers allow this protocol to work properly? (Select TWO).
20 21
Secure Shell (SSH)
22
To assist a user, a help desk technician is able to take advantage of a Windows proprietary network protocol that allows the technician to open a graphical interface to connect with the user's Windows computer. Which of the following TCP/IP port numbers is the default port used by this protocol?
3389
While working on a Windows workstation, you've enabled Remote Desktop. Which of the following ports MUST be opened in the server's firewall to allow remote clients to access the desktop?
3389
Service Location Protocol (SLP)
427
HTTP over SSL (HTTPS)
443
While making an online bank transaction, a customer checks to see that the web browser is displaying a lock icon that indicates that an encrypted TCP/IP suite protocol is being used. Which of the following TCP/IP port numbers does this protocol typically use when the browser encrypts its communications with the bank's web server?
443
Server Message Block (SMB/CIFS) directly over TCP
445
You've just installed the DNS service on a Windows server. Which port must be opened in the server's firewall to allow clients to access the service?
53
Apple Filing Protocol (AFP)
548
Hypertext Transfer Protocol (HTTP)
80
Which of the following is the best definition for a LAN?
A network in a small geographic area, like in an office.
Which of the following statements about the Dynamic Host Configuration Protocol (DHCP) are true? (Select TWO.)
A workstation must request addressing information from a DHCP server. It can deliver a DNS server address in addition to the host IP address.
You have a computer with an onboard LAN adapter. The LAN adapter has failed, and you are unable to connect the computer to the network. What should you do?
Add a network card using a PCI slot.
You have a user who takes his laptop home every day after work. When he's working in the office, the laptop must get an IP address from the DHCP server so you configure it to obtain IP and DNS information automatically. When he's working from home, the laptop must use IP and DNS information that connects with his home network. Which IP addressing method can you use to make sure he gets a network connection at home?
Alternate IP configuration
A Windows workstation is configured to receive its IP configuration information from a DHCP server on the company network. The user at the workstation reports that she cannot use email and is unable to reach the internet. Using the ipconfig command, you see that the workstation has been assigned the following special IP configuration: IP address: 169.254.0.1 Subnet mask: 255.255.0.0 What is this special IP configuration called? Why did the workstation receive this type of configuration?
Automatic Private IP Addressing (APIPA) The workstation was unable to contact the DHCP server
Can be used to connect wireless clients to wired clients on the same network.
Bridge
Which of the following is a valid MAC address?
C0-34-FF-15-01-8E
While investigating a network connectivity issue, a technician finds that the link light on a workstation is not lit, and there is no connectivity after replacing the patch cable both between the workstation and the wall jack and between the patch panel and the switch with cables that are known to be good. If the wall jack and patch panel ports are labeled correctly, which of the following tools would the technician MOST likely use next?
Cable tester
A group of workers attend a team-building retreat at a remote cabin. They can place calls on their mobile smartphones, but the cabin has no wired phone, television, or wired internet connectivity. The workers need to access an internet webpage using their laptop computers. Which of the following internet connection types might be available to the workers?
Cellular
Which of the following types of internet connection services can allow you to be truly mobile while maintaining your internet connection?
Cellular
A technician is replacing a cable modem. The cable from the cable company has an inner solid wire conductor and an outer mesh conductor separated by PVC plastic insulation. Which of the following network cable types is being used?
Coaxial cable
Nate, an employee in your organization, has started to work from home two days a week. Nate uses the same company laptop while working in the office and working at home. Nate's laptop automatically connects to the wireless network in the office, but does not automatically connect to his home wireless network. Nate would like the laptop to connect automatically at home and at work. Which of the following would BEST allows this to happen?
Configure an alternate TCP/IP configuration on the laptop's wireless adapter to use a static IP address that is compatible with the home network.
Which type of network medium is used by an Integrated Services Digital Network (ISDN) adapter?
Copper telephone wire
While sorting through a box of cables in your storage room, you find one that matches the configuration shown in the image. Which of the following BEST describes the type of cable configuration and the purpose for which it would be used?
Crossover cable configuration used to connect computers directly to one another for networking.
As the IT technician for your company, you need to ensure that IP addresses are automatically assigned to hosts while at the same time preventing the same address from being assigned twice. Which of the following services would be BEST to use?
DHCP
Currently, the users in your company are required to use their IP addresses when connecting to other hosts. Since IP addresses are difficult to remember, you want to implement a protocol on your network that allows computers to automatically find another host's IP address using a logical name. Which of the following protocols would be the BEST to implement?
DNS
You want to implement name resolution on the Linux workstations in your company. Which protocol will you use to do this?
DNS
You are the IT technician for your company. Which of the following mechanisms would BEST allow you to resolve a hostname into its associated IP address? (Select TWO).
DNS hosts file
A homeowner's connection to the internet is through an always-on modem that connects to existing telephone wiring and has a download speed of over 3 Mbps. The homeowner is able to make analog phone calls over the same wiring at the same time. Which of the following internet connection types is being used?
DSL
Which TCP/IP configuration parameter identifies the router that is used to reach hosts on remote networks?
Default gateway
You have just connected a new computer to your network. The network uses static IP addressing. You find that the computer can communicate with hosts on the same subnet, but not with hosts on a different subnet. No other computers are having a problem. Which of the configuration values would you most likely need to change?
Default gateway
After several new computers are connected to a network device, every computer connected to the device begins to experience slow transfer speeds. Which of the following is the FIRST step in troubleshooting this problem?
Determine whether the network device is a hub or a switch.
Which of the following are features of Basic Rate ISDN (BRI)? (Select THREE.)
Dial-up connection Two data Channels One control channel
Which of the following is a wired networking method most commonly used today by desktop PCs and other network devices to connect to a local area network?
Ethernet
Which of the following devices allows network communications to be transmitted over existing AC power lines?
Ethernet over Power
You have just signed up for a broadband home internet service that uses coaxial cable. Which connector type will you most likely use?
F-type
The following is an example of an IPv6 address: FEC0:1319:7700:F631:446A:5511:CC40:25AB Which part of the example IPv6 address is the prefix? Which quartet in the example IPv6 prefix is used to identify the subnet? Which part of the example IPv6 address is the interface ID?
FEC0:1319:7700:F631 F631 446A:5511:CC40:25AB
Which of the following is a valid IPv6 address?
FEC0::AB:9007
You want to allow your users to download files from a server running the IP protocol. You want to protect access to the files by requiring user authentication to access specific directories on the server. Which IP protocol should you implement to provide this capability?
FTP
A customer is upgrading the routers and switches in their network. The signal source in these network devices is a light-pulse. Which of the following network cabling options is MOST likely being used in this upgrade?
Fiber optic
You are configuring an ADSL connection. Which of the following will be part of the configuration? (Select TWO.)
Filters or splitters RJ11 connectors
What is a major benefit STP provides that UTP does not?
Greater resistance to interference
You are using a crimper to attach an RJ45 connector to a Cat 6 UTP cable. You need to use the T568A standard to connect the individual wires to the connector. Which wire should be connected to pin 1?
Green with white
Which of the following correctly describe the most common format for expressing IPv6 addresses? (Select TWO.)
Hexadecimal numbers 32 numbers, grouped using colons
Connects segments on the same subnet. Repeats signals out to all other ports.
Hub
Operates in half-duplex mode, meaning devices can either send or receive data at any given time.
Hub
Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet contents?
Hub
Which of the following protocols is used by an email client to retrieve messages from an email server and gives users the option to keep mail messages on the server?
IMAP
You want to use your Windows workstation to browse the websites on the internet. You use a broadband DSL connection to access the internet. Which network protocol must be installed on your workstation to do this?
IP
A technician is configuring the static TCP/IP settings on a client computer. Which of the following configurations are needed for internet communications? (Select THREE.)
IP address including a subnet mask (IPv4) or subnet prefix length (IPv6) DNS server address Default gateway address
Which of the following network technologies is packaged as part of a BRI plan?
ISDN
Which of the following are advantages of using fiber optic cabling for a network, as opposed to other types of cabling? (Select TWO.)
Immunity to electromagnetic interference Greater cable distances without a repeater
A user reports that he can't browse to a specific website on the internet. From his computer, you find that a ping test to the Web server succeeds. A traceroute test shows 17 hops to the destination web server. What is the most likely cause of the problem?
Incorrect DNS server address
You manage a network that has multiple internal subnets. You connect a workstation to the 192.168.1.0 subnet using the default subnet mask. This workstation can communicate with some hosts on the private network, but not with other hosts. You run ipconfig /all and see the following: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : mydomain.local Description . . . . . . . : Broadcom network adapter Physical Address. . . . . . : 00-AA-BB-CC-74-EF DHCP Enabled . . . . . . . : No Autoconfiguration Enabled. . . : Yes IPv4 Address . . . . . . . : 192.168.1.102(Preferred) Subnet Mask . . . . . . . : 255.255.255.0 Default Gateway. . . . . . . . . : 192.168.2.1 DNS Servers. . . . . . . . . . . : 192.168.2.20 Which of the following is the MOST likely cause of the problem?
Incorrect default gateway
You manage a network that has multiple internal subnets. You connect a workstation to the 192.168.1.0 subnet, which uses the default subnet mask. This workstation can communicate with some hosts on the private network, but not with other hosts. You run ipconfig /all and see the following: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : mydomain.local Description . . . . . . . : Broadcom network adapter Physical Address. . . . . . : 00-AA-BB-CC-74-EF DHCP Enabled . . . . . . . : No Autoconfiguration Enabled. . . : Yes IPv4 Address . . . . . . . : 192.168.1.102(Preferred) Subnet Mask. . . . . . . . : 255.255.0.0 Default Gateway . . . . . . : 192.168.1.1 DNS Servers . . . . . . . : 192.168.1.20 192.168.1.27 Which of the following is the MOST likely cause of the problem?
Incorrect subnet mask
Which actions allow you to access the internet on your laptop via a cellular network?
Install a cellular USB adapter in a open port on the laptop.
You are setting up a small network in your office with one Windows server and 50 Windows workstations. You want to spend as little time as possible configuring the workstations with IP addressing information. What should you do?
Install and configure the DHCP service on your server.
Which of the following best describes how a switch functions?
It connects multiple cable segments or devices and forwards frames to the appropriate segment.
Which of the following are characteristics of coaxial network cable? (Select TWO.)
It has a conductor made from copper in the center of the cable. It uses two concentric metallic conductors.
Which of the following statements accurately describes how a modem works? (Select TWO.)
It modulates digital data from the PC into analog data and transmits it on a telephone network. It demodulates analog data from a telephone network into digital PC data.
A technician must press a cable connector's retaining tab to remove a faulty fiber optic network cable. Which of the following connectors does the cable use?
LC
A SOHO's connection to the internet is through an antenna that sends and receives a microwave signal to the ISP's antenna. There can be no obstacles on the direct path between the two antennae. Which of the following internet connection types is being used?
Line-of-sight wireless
A network in a small geographic area that typically uses wires to connect systems together.
Local Area Network (LAN)
A set of subnets connected to each other, typically by wires, using at least one router.
Local Area Network (LAN)
You have been asked to implement a network infrastructure that will accommodate failed connections. Which of the following network topologies provides redundancy for a failed link?
Mesh
You have implemented an ad hoc wireless network that doesn't employ a wireless access point. Every wireless network card can communicate directly with any other wireless network card on the network. What type of physical network topology has been implemented in this type of network?
Mesh
You have a network that uses a logical bus topology. How do messages travel through the network?
Messages are broadcast to all devices connected to the network.
You have a network that uses a logical ring topology. How do messages travel through the network?
Messages travel from one device to the next until they reach the destination device.
A network that covers an area as small as a few city blocks to as large as an entire city.
Metropolitan Area Network (MAN)
A network that is typically owned and managed by a city as a public utility.
Metropolitan Area Network (MAN)
To access the internet through the Publicly Switched Telephone Network (PSTN), what kind of connectivity device must you use?
Modem
Cable lengths are limited in distance.
Multimode
Data transfers through the core using more than one light rays.
Multimode
A medical center wants to upgrade their network backbone to 10-Gigabit Ethernet (10 Gbps) so they can perform daily backups of large amounts of data to the secure on-site storage area network (SAN) without bogging down the network. Some of the backbone segments will have to reach between buildings that are close to 300 meters apart. Which of the following cable types BEST supports the 10-Gigabit Ethernet at the necessary segments lengths while keeping costs as low as possible?
Multimode fiber optic
Which network component connects a device to the transmission media and allows it to send and receive messages?
Network interface card
A technician connects two network switches using a twisted pair cable. Neither switch supports auto-uplinking. Which of the following identifies the TIA wiring standard required on each end of the cable?
One end must be T568A, and the other must be T568B.
Which of the following terms refers to a network resource sharing model that uses access control lists saved on each computer?
Peer-to-peer
A group of workers in an office space communicate with each other on their smartphones and tablet devices through an ad hoc network linked using Bluetooth technology protocols. Which of the following network types is in use?
Personal Area Network (PAN)
A small network used for connecting devices, such as a notebook computer, a wireless headset, a wireless printer, and a smartphone.
Personal Area Network (PAN)
You are installing networking cable in the air space between the ceiling and the roof of a building. Which type of cabling should you use?
Plenum
A technician is running a network above a dropped ceiling that is also used for ventilation. The cable must be twisted pair and must be capable of Gigabit Ethernet speeds. Which of the following cables should be used?
Plenum-rated CAT-6a
A user is configuring an email client application and plans to use a standard TCP/IP suite protocol to retrieve email messages from an email server. Which of the following TCP/IP suite protocols can be used to retrieve email messages? (Select TWO).
Post Office Protocol (POP3) Internet Message Access Protocol (IMAP)
Which of the following devices can be used to distribute electrical power along with network data on twisted-pair Ethernet cabling (CAT 5 or higher)?
Power over Ethernet
A technician is installing a cable modem that supplies internet connectivity for a home office. Which of the following cabling types would be used to connect the cable modem to the cable wall outlet?
RG6
Which kind of connector do you use to connect a modem to a standard telephone line?
RJ11
Which connector is used with unshielded twisted pair (UTP) cable?
RJ45
Connects two network segments that have different subnet addresses.
Router
Uses the IP address within a packet to move packets between networks.
Router
You have recently been called to troubleshoot network connectivity problems at a user's workstation. You have found that the network cable runs across high-traffic areas on the floor, causing the cable to wear through and break. You have replaced the cable with a plenum-rated and shielded twisted pair cable. You would like to minimize the problem and prevent it from happening again. Which of the following will BEST protect the cable from further damage?
Run the cable through the ceiling area instead of across the floor.
Which protocol is used to send email messages from a mail client to a mail server?
SMTP
What is name of the utility that is (1 similar to Telnet and (2 used to establish a secure remote server management session?
SSH
A healthcare organization provides mobile clinics throughout the world and needs to transfer patients' statistical data to a central database via the internet. Which network technology should you select to ensure network connectivity for any clinic located anywhere in the world, even remote areas?
Satellite
An 8-port switch receives a frame on port number 1. The frame is addressed to an unknown device. What will the switch do?
Send the frame out ports 2-8.
Cable lengths can extend a great distance.
Single mode
The core diameter is around 10 microns.
Single mode
Which of the following topologies connects each network device to a central hub?
Star
While setting up a home office, a technician disables the DHCP service on the office router, but does not want to rely on link-local addressing. Which of the following IP addressing methods should be used?
Static
A host on your network that provides a service that requires the server to always use the same IP address. Which IP addressing method can you use to manually assign the specific IP address?
Static IP addressing
A technician determines that an older network hub that connects 24 workstations is performing poorly due to excessive network collisions. Which of the following network devices would be the BEST replacement?
Switch
Connects segments on the same subnet. Forwards signals to only the port connected to the destination device.
Switch
Operates in full-duplex mode, meaning devices can both send and receive data at the same time.
Switch
What device is used to create a physical star topology?
Switch
Which of the following LAN devices receives a signal on one port and forwards that signal only to the port where the destination device is connected?
Switch
You are an IT technician for your company and would like to be able to: Establish a remote server management session. Send unencrypted (clear text) transmissions to the remote server. Manage specialized industrial and scientific devices. Which of the following utilities would be the BEST to use to accomplish these tasks?
Telnet
Which of the following tools allow remote server management? (Select TWO.)
Telnet SSH
A laptop has a wired connection to the network and is configured with a static IP address. The link light on the NIC is lit, but the laptop can't communicate with any hosts on the local network. Which of the following is the MOST likely cause of the issue?
The IP address conflicts with another host on the local network.
Which of the following identifies the prefix component of an IPv6 address? (Select TWO.)
The first four quartets of an IPv6 address. The first 64 bits of an IPv6 address.
Which of the following identifies the Interface ID component of an IPv6 address? (Select TWO.)
The last four quartets of an IPv6 address. The last 64 bits of an IPv6 address.
Which of the following describes the part of the IPv6 address that identifies the subnet address?
The last quartet in the IPv6 address prefix.
Which of the following is true of a network using the 1000Base-T standard? (Select TWO.)
The network uses copper UTP cables. The network operates at one gigabit per second.
You are installing a satellite connection so your home office can connect to the internet. Which of the following statements is true?
The satellite dish must be pointed in the correct direction for communicating with the satellite.
A laptop has a wired connection to the network and is configured with a static IP address. The link light on the NIC is lit, but the laptop can't communicate with any hosts on the local network. Which of the following is the MOST likely cause of the issue?
The static IP address and subnet mask are configured with the wrong network address.
While investigating a network connectivity issue, a technician finds that the link light on a workstation is not lit, and there is no connectivity after replacing the patch cable with one that is known to be good. The wall jack is not labeled, and within the switch room, none of the cables or patch panel ports are labeled. Which of the following tools would the technician MOST likely use next?
Tone generator
You are a software developer, and you are creating a multimedia streaming application. Data will be streamed from your streaming server to streaming clients over IP networks. Which transport protocol should your application use to send data between the clients and the server?
UDP
Which of the following are options for connecting a computing device, such as a notebook computer or a tablet, to a cellular network? (Select FOUR.)
Use a USB cable to connect the device to the network through a smartphone. Use the device's Wi-Fi to connect to the network through a cellular Wi-Fi hot spot. Use a USB cellular antennae to connect the device directly to the cellular network. Use an integrated cellular antennae to connect the device directly to the cellular network.
Which of the following protocols carry phone calls over an IP-based network?
VoIP
You are the network technician for a small company. One of your responsibilities is to ensure that all new hardware is connected and functioning properly. You have several different types of connections that are used for various types of hardware. One of the types of cable available to you is an RJ45 cable. Which of the following BEST describes where this cable would most likely be used?
Voice over IP connection
How do switches and bridges learn where devices are located on a network?
When a frame enters a port, the source MAC address is copied from the frame header.
A group of networks that are geographically isolated, but are connected to form a large internetwork.
Wide Area Network (WAN)
Similar to a standard LAN, but uses radio signals instead of wires to connect systems together.
Wireless Local Area Network (WLAN)
You are talking with a customer support technician on the telephone. The technician recommends downloading a particular driver from the internet. When you try to connect to the internet using your dial-up modem, you can't. What is the problem?
You need to hang up.
Which of the following utilities can you use from the command line on a Linux system to see a list of the installed network interfaces along with their current statuses and configurations?
ifconfig
You are troubleshooting network connectivity issues on a Windows workstation. Which command would you use to view the MAC address of the network adapter?
ipconfig /all
You need to view detailed IP configuration information on Windows workstation. In addition to the IP address, subnet mask, and default gateway configuration, you need to see the network card's MAC address and the addresses of the DHCP and DNS servers the workstation is communicating with. What command would you enter at the command line to see this detailed information? When you see the address of the DNS server, you realize that this information needs to be updated. Earlier in the day, you implemented a new DNS server with a new IP address. The workstation will update this information in 24 hours. What command can you enter at the command line to update the DNS server information right away?
ipconfig /all ipconfig /flushdns
You are the computer specialist in a small business. Your company server is named FS1 and has an IP address of 10.0.0.2. The hardware in your company server started to experience intermittent failures, so you transferred the shares on the server to a spare server and took the main server offline. The spare server has an IP address of 10.0.0.3. You edit the existing A record for FS1 on your company's DNS server and redirect the hostname to the spare server's IP address of 10.0.0.3. Afterward, most users are able to access the shares on the spare server by hostname, but several users cannot. Instead, they see an error message indicating that the FS1 server could not be found. Enter the command you can run from the command prompt on these workstations that will allow them to access the shares on FS1 without performing a full restart.
ipconfig /flushdns
Displays active sessions, ports, sockets, and the local routing table.
netstat
Displays current connections and incoming and outgoing connections.
netstat
Which utility would you use to view current connections and active sessions and ports on a computer?
netstat
A user is having problems connecting to other computers using hostnames. Which of the following commands will BEST help you troubleshoot this problem?
nslookup
Resolves (looks up) the IP address of the specified hostname.
nslookup
You have had several employees call the help desk where you work, complaining that they are not able to reach the www.widgets.com server. To help troubleshoot this issue, you decide to run a variety of commands. Which of the following commands is MOST likely to return the IP address of the desired server? (Select THREE).
nslookup www.widgets.com ping www.widgets.com tracert www.widgets.com
Examine the following output: Server: helicuplar.xct.takro.net Address: 209.53.4.130 Name: westsim.com Address: 64.78.193.84 Which command produced this output?
nsloopup
A few simple replies to this request from the remote host indicates that a connection exists between sender and receiver.
ping
Performs a continuous connection test when used with the -t option.
ping
Sends an ICMP echo request/reply packet to a remote host.
ping
A user tells a help desk technician that their browser is displaying a message that a site can't be reached. When asked, the user tells the technician that other users in the same office can browse to the site. The technician suspects that the web server's name is not being translated to the correct IP address. The technician asks the user to open a command prompt window. Which of the following commands would confirm the technician's assumption? (Select TWO).
ping nslookup
You work in an office that uses Linux and Windows servers. The network uses the IP protocol. You are sitting at a Windows workstation. An application you are using is unable to connect to a Windows server named FileSrv2. Which of the following commands would work BEST to test network connectivity between your workstation and the server? (Select TWO).
ping tracert
An end user claims they are unable to connect to the internet and has called the company's help desk for a solution. Having been assigned to this issue, you decide to first test whether or not TCP/IP is working correctly on the local computer. Which of the following is the BEST command to use for this test?
ping 127.0.0.1
You are troubleshooting connectivity between your computer and the www.widgets.com server, whose IP address is 192.168.1.1. Which of the following commands tests connectivity to the device as well as name resolution?
ping www.widgets.com
A technician located at a branch office can't communicate with a company server at the home office. Which of the following commands could be used to determine where the communication is blocked?
tracert
Examine the following output: 4 22 ms 21 ms 22 ms sttlwa01gr02.bb.ispxy.com [154.11.10.62] 5 39 ms 39 ms 65 ms plalca01gr00.bb.ispxy.com [154.11.12.11] 6 39 ms 39 ms 39 ms Rwest.plalca01gr00.bb.ispxy.com [154.11.3.14] 7 40 ms 39 ms 46 ms svl-core-03.inet.ispxy.net [205.171.205.29] 8 75 ms 117 ms 63 ms dia-core-01.inet.ispxy.net [205.171.142.1] Which command produced this output?
tracert
Tests connectivity between devices and shows the routers in the path between the two devices.
tracert
You are the network administrator of a branch office of your company. The branch office network is part of a WAN that covers most of the United States. Users have been complaining that they are unable to access resources over the WAN at the main headquarters. You suspect that one of the routers between your office and the main headquarters is not working properly. To troubleshoot the routers, which of the following TCP/IP utilities would be BEST to use?
tracert
