TestOut Practice Questions

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 connected to that interface.

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

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

Bus

Which of the following cable types often includes a solid plastic core that keeps the twisted pairs separated?

Cat 6

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 tasks is associated with the Session layer?

Connection establishment

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

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

Enabling of communication between network clients and services. Integration of network functionality into the host operating system.

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

End-to-end flow control Reliable message delivery Data segmentation and reassembly

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

F-type

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

Greater cable distances without a repeater Immunity to electromagnetic interference

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

It uses two concentric metallic conductors. It has a conductor made from copper in its center.

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

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

Which of the following connectors are used with fiber optic cables and include both cables in a single connector? (Select two.)

MTRJ LC

Your manager has asked you 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 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.

Which of the following geographic network types is typically managed by a city as a public utility?

Metropolitan area network (MAN)

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

Multimeter

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 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?

OTDR

Your manager has asked you to implement a wired network infrastructure that will accommodate failed connections. You don't have a large budget, so you decide to provide redundancy for only a handful of critical devices. Which of the following network topologies should you implement?

Partial mesh

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

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

Physical network device identification Data transmission between hosts

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

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.

Presentation layer Application Data Link layer Network Application layer Application Session layer Application Network layer Internetwork Transport layer Transport

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

RJ45

Which of the following connector types would you most likely use to connect to a T1 WAN service?

RJ48c

In the OSI model, what is the primary function of the Network layer?

Route messages between networks.

Which of the following connectors is used with fiber optic cables and requires that you use a twisting motion to connect it?

ST

Which of the following connectors usually require polishing as part of the assembly process? (Select two.)

ST SC

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

Single-mode fiber

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

Single-mode fiber optic

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?

Smartjack

You have a small network that uses a switch to connect multiple devices. Which physical topology are you using?

Star

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.)

The cable is functioning correctly. This is a crossover cable.

Which of the following are characteristics of an LC fiber optic connector? (Select two.)

They use a housing and latch system similar to an RJ45 UTP connector. They are half the size of standard connectors.

Why might you use an RJ11 connector?

You want to connect your computer to the internet with a DSL modem.

Multi-mode fiber is designed to operate at which of the following wavelengths?

850 nm and 1300 nm

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

Application layer HTTP Presentation layer Encapsulation Session layer Session ID number Transport layer Port number Network layer Router Data Link layer Switch Physical layer Modem

You're working with an older 10Base2 Ethernet network. Which of the following connector types will you MOST LIKELY encounter?

BNC

What is the basic purpose of the OSI Physical layer?

Coordinate rules for sending and receiving electrical signals.

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

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

Data format specifications Data encryption and compression

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 crosstalk and supporting higher data rates.

You're building a new network for a small financial services startup company. Security is paramount, so each organization within the company will have their own network segments separated by routers. 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 multi-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've purchased several used 1-meter, multi-mode patch cables from Amazon. But when they arrived, you noticed that they use LC connectors. Fortunately, with some force, you found that you're able to get the LC connectors on the cables to lock into the MTRJ connectors on the GBIC modules and on the switch. Will this implementation work?

No. You should purchase patch cables that use MTRJ connectors.

You have a small home network connected to the internet using an RG-6 cable. You need to move the router, but you can't find anymore RG-6 cabling. Which cable type could you use instead?

RG-59

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

Ring

Which of the following are characteristics of an MTRJ fiber optic connector? (Select two.)

They use metal guide pins to ensure accurate alignment. They can be used with multi-mode fiber optic cables.

During TCP/IP communication between two network hosts, information is encapsulated on the sending host and decapsulated on the receiving host using the OSI model. Match the information format on the left with the appropriate layer of the OSI model on the right.

Transport layer Segments Network layer Packets Data Link layer Frames Physical layer Bits