Test Out MidTerm

Match each layer of the TCP/IP model on the left with the corresponding layer of the OSI model on the right. Each option on the left can be used more than once.

-Application ---------(-Application, -Presentation, -Session) -Transport -----------(-Transport) -Internet -------------(-Network) -Network Interface --(-Data Link) (Hardware) -----------(-Physical)

Match each networking function or device on the left with its associated OSI model layer on the right.

-Application ----Session ID number -Presentation ---Wireless access point -Session --------Router -Transport ------Switch -Network -------Port numbers -Data Link ------ASCII -Physical -------HTTP

A host has an address of 100.55.177.99/16. Which of the following is the broadcast address for thesubnet?

100.55.255.255

You're configuring a network firewall to allow SMTP outbound email traffic and POP3 inbound email traffic. Which of the following TCP/IP ports should you open on the firewall? (Select two.)

110 and 25

Which network address and subnet mask does APIPA use? (Select two.)

169.254. 0.0 and 255.255. 0.0

Your network has a network address of 172.17.0.0 with a subnet mask of 255.255.255.0. Which of the following are true concerning this network? (Select two.)

172.17.2.0 is a valid subnet 254 host addresses are available.

Your network uses a network address of 137.65.0.0 with a subnet mask of 255.255.0.0. How many IP addresses are available to assign to network hosts on this network?

65534

While viewing the status of interfaces on a Cisco switch, you see an abnormally large number of CRC errors on one interface. This interface is connected to a user's workstation that is located in a cubicle on the second floor. What could cause this to happen?

A strong EMI emitter near the cable run connected to the interface.

Which of the following is a valid MAC address?

AB.07.CF.62.16.BD C0-34-FF-15-01-8E

During network transmission, data is transferred to various routers, which forward the data to the appropriate network. If the source and destination network addresses reside on the same network, which protocol is used to determine the destination IP's MAC address?

ARP

You need to replace a fiber optic cable that's connecting two switches together. You inspect the existing cable and determine that it uses LC connectors. You also notice that the cable's ferrule has a slight slant to it. Which polish grade should you use to replace the existing cable?

Angled Physical Contact Polish

You're working with an existing fiber optic installation in your building. You want to know the length of each cable that runs through the walls. Which tool should you use?

Cable Tester

Which of the following features does UDP provide? (Select two.)

Can send or receive from many applications Cannot guarantee delivery

You've implemented a network where hosts are assigned specific roles, such as file sharing and printing roles. Other hosts access those resources, but they don't host services of their own. Which type of network do you have?

Client Server.

Which of the following cables offers the best protection against EMI?

Coaxial Cable

How do switches and bridges learn where devices are located on a network?

Copy mac address to frame header

You've decided to implement Gigabit Ethernet on your network; each switch port is connected to a single device. Following the installation, you find one device connected to a switch that's only running at 100 Mbps. Which of the following is MOST LIKELY the cause?

Crosstalk

You have a network with 50 workstations. You want to automatically configure the workstation with the IP address, subnet mask, and default gateway values. Which device should you use?

DHCP server

Which of the following strategies do we use to prevent duplicate IP addresses from being used on a network? (Select two.)

DHCP server / automatic private ip addressing

You need to terminate a Cat6 UTP cable with an RJ45 connector. Your organization's IT policy states that all cable connectors must be wired according to TIA568B standards.

Drag the UTP wire on the left to the correct pin on the RJ45 connector on the right. Pin 1 - White with orange stripe Pin 2 - Solid orange Pin 3 - White with green stripe Pin 4 - Solid blue Pin 5 - White with blue stripe Pin 6 - Solid green Pin 7 - White with Brown stripe Pin 8 - Solid Brown

You have a cable internet connection at home. The installer had connected the router near the outside wall of your house with RG6 cable. You move the cable router a distance of 50 meters using RG8 cables and special connector adapters.Which condition are you MOST LIKELY to experience?

Echo

Which of the following is the process of breaking a message into packets, adding controls and other information, and then transmitting the message through the transmission medium?

Encapsulation is the process of breaking a message into packets, adding control and other information, and transmitting the message through the transmission media.

In the OSI model, which of the following functions are performed at the Presentation layer? (Select two.)

Encrypt and compress data and Specify data format (such as file formats)

Which of the following protocols allows hosts to exchange messages to indicate problems with packet delivery?

ICMP

Which of the following are advantages of using fiber optic cabling for a network? (Select two.)

Immunity to electromagnetic interferenceGreat cable distance without a repeater.

Which of the following are characteristics of a coaxial network cable? (Select two.)

It uses two concentric metallic conductors The ends of the cable must be terminated

Which of the following terms identifies the wiring closet in the basement or ground floor that typically includes the demarcation point?

MDF

Which of the following are included as part of the Data Link layer specifications? (Select two.)

Media access, logical topology, and device identification occur at the Data Link layer.

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.

You want to measure the voltage, amps, and ohms of various devices. Which tool should you use?

Multimeter

Match each TCP/IP layers with its function.

Network Access Layer frames, mapping, IP, transmit data Internet Layer IP, ARP, ICMP Host to Host Layer TCP, UDP Application Layer HTTP, NTP, TELNET, FTP

You're building a new network for a small financial services startup company. Security is paramount, so each organization within the company will have its own network segment separated by a router. However, funds are limited, and you've been asked to keep costs to a minimum. You've acquired a used fiber optic switch, and you want to use it to create a fiber optic backbone that interconnects all of the routers. You've purchased several used single-mode GBIC modules on eBay that you'll install on each router to allow them to connect to the switch. Both the switch and the GBIC modules use MTRJ connectors. You connect each module to the switch with 1-meter multimode patch cables. Will this implementation work?

No, you shouldn't use multi-mode patch cables with single mode GBIC modules.

You're building a new network for a small financial services startup company. Security is paramount, so each organization within the company will have its own network segment separated by a router. However, funds are limited, and you've been asked to keep costs to a minimum. You've acquired a used fiber optic switch, and you want to use it to create a fiber optic backbone that interconnects all of the routers. You've purchased several used single-mode GBIC modules on eBay that you'll install on each router to allow them to connect to the switch. Both the switch and the GBIC modules use MTRJ connectors. You connect each module to the switch with 1-meter multimode patch cables. Will this implementation work?

No, you shouldn't use multimode patch cables with single mode GBIC modules.

You're installing network wiring for a new Ethernet network at your company's main office building. The project specifications call for Cat 5e UTP network cabling and RJ45 wall jacks. Near the end of the project, you run out of wire before the last few runs are complete. You have a spool of Cat 3 network cable in storage. Upon closer inspection, it appears very similar to the Cat 5e wiring. To finish the project, should you use the Cat 3 cabling as a substitute for the Cat 5e cabling?

No. Cat 5e cabling has more twists per inch than Cat 3 cabling, reducing cross-talk and supporting higher data rates.

You've implemented a network where each device provides all other devices on the network with access to shared files.Which type of network do you have?

Peer-to-Peer

You're adding new wires in your building for some new offices. The building has a false ceiling that holds the lights and provides an air path for heating and air conditioning. You'd like to run your Ethernet cables in this area. Which type of cable must you use?

Plenum rated cable

CorpServ is a small company with 14 client systems and a network printer. Because there are only a limited number of network systems, you decide to use APIPA addressing. With APIPA configured, all the systems are able to communicate with each other, but you're having trouble configuring internet access. What is the MOST LIKELY cause of the problem?

Private addresses cannot directly communicate to hosts outside the local subnet.

Which of the following connectors is used with Ethernet 100BaseTX networks?

RJ45

What is the first thing a device does when it connects to a network?

Sends DHCP discover packet

You're an application developer, and you're writing a program for exchanging video files through a TCP/IP network. You need to select a transport protocol that will guarantee delivery. Which TCP/IP protocol provides this capability?

TCP

In the OSI model, which of the following functions are performed at the Application layer? (Select two.)

The Application layer enables network services, and integrates network functionality into the host operating system.

Which of the following functions are performed by the OSI Transport layer? (Select three.)

The Transport layer is responsible for breaking upper-layer data into segments and allowing reliable communications through end-to-end flow control, error detection, and error correction.

Which of the following is true about single-mode fiber optic network cabling?

The central core is smaller than standard multi-mode fiber optic cabling core.

After you install a new DHCP server on your network, you need to verify that the network devices are receiving IP addressing via DHCP. You reboot a Windows 10 client system and, using the ipconfig /all command, receive the following information: Ethernet adapter Local Area Connection 1: Description . . . . . . . . . . . : Intel(R) Ethernet Connection Physical Address. . . . . . . . . : 02-00-4C-4F-3F-50 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Autoconfiguration IPv4 Address. . : 169.254.25.129 Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DNS Servers . . . . . . . . . . . : Which of the following statements are true? (Select two).

The client system is unable to reach the DHCP server. The client system is configured to use DHCP.

What role does ARP play in the routing process?

Translates 32 bit to 48 bit addresses

Which of the following protocols does DHCP use when it sends out IP configuration?

UDP

Which port is a DHCP Discover packet sent out on when a device first connects to a network?

UDP port 28

You've just signed up for a broadband home internet service that uses coaxial cabling. Which connector type will you MOST LIKELY use?

Use an F-type connector for broadband cable connections that use coaxial cable.

You have a large TCP/IP network and want to keep a host's real-time clock synchronized. Which protocol should you use?

You have a large TCP/IP network and want to keep a host's real-time clock synchronized. Network Time Protocol (NTP)

Which of the following topologies connects all devices to a trunk cable?

bus topology connects all devices to a trunk cable.

You are making Ethernet drop cables using Cat5e cables and RJ45 connectors. You need to remove the plastic coating over the cable to expose the individual wires.Which tool should you use?

cable stripper

Due to wide network expansion, you've decided to upgrade your network by configuring a DHCPserver. The network uses Linux, Windows, and Mac OS X client systems. You configure the server to distribute IP addresses from 192.168.2.1 to 192.168.2.100. You use the subnet mask of 255.255.255.0. After you make all the setting changes on the DHCP server, you reboot each client system, but they're not able to obtain an IP address from the DHCP server. Which of the following explains the failure?

client isnt configured

Which of the following describes the point where the service provider's responsibility to install and maintain wiring and equipment ends and the customer's begins?

demarc

You are the network administrator for a small organization. Recently, you contracted with an ISP to connect your organization's network to the internet. Since doing so, it has come to your attention that an intruder has invaded your network from the internet on three separate occasions. Which type of network hardware should you implement to prevent this from happening again?

firewall

You have a server that has a 100BaseFX network interface card you need to connect to a switch.The switch only has 100BaseTX switch ports. Which device should you use?

media converter

At which OSI layer does a router operate to forward network messages?

network

Which of the following terminates individual wires from a 25-pair or 100-pair cable using female RJ45 ports?

patch panel

You've connected a cable certifier to an RJ45 wall jack, and the output shown below is displayed on the device. What does this output indicate? (Select two.)

pin 4 & 6 are open

Which port does the relay agent use when it sends DHCP information back to the client?

port 67

You are the network administrator for a large hospital. One of your users, Suzie, calls you stating that she is unable to access any network resources. After some initial troubleshooting, you realize that her computer is using the IP address 169.254.0.52. You've confirmed that the network's physical connection is connected properly. Which of the following should you do next?

renew ip address

Which of the following are true about a MAC address? (Select two.)

represented by hexadecimal numbers and its a 48-bit address

Which of the following topologies connects each device to a neighboring device?

ring

Which of the following hardware devices links multiple networks and directs traffic between networks?

router

Which type of optical fiber is normally used to connect two buildings that are several kilometers apart?

single-mode fiber optic cables

Users report that the internet is no longer accessible. You suspect that the line connecting your building to the internet isn't working properly. Which of the following allows the service provider to remotely test the local loop?

smart jack

Which of the following best describes the purpose of using subnets?

they divide ip addresses into multiple addresses