CNG101 M1 Exam

The protocol data unit for the Physical layer of the OSI model is called payload or data.

False

What does a statement of work document do?

It documents in detail the work that must be completed for a particular object, and includes specifics such as tasks, deliverables, standards, payment schedule, and work timeline.

At what layer of the OSI model do the IP, ICMP, and ARP protocols operate?

Network

What statement regarding main distribution frame or main distribution facilities is accurate?

The MDF is the centralized point of interconnection for an organization's LAN or WAN.

The TCP and UDP protocols both exist at what layer of the OSI model?

Transport

After a problem and its symptoms have been identified, a theory regarding a probable cause should be established.

True

Fiber-optic cable comes in two types: single-mode fiber (SMF) or multimode fiber (MMF).

True

The TIA/EIA standard for wall jacks in a work area requires that at least one outlet be provided for data and one for voice.

True

The industry standard height for a rack in rack units is 42U.

True

The term firmware refers to programs embedded into hardware devices. This software only changes when a firmware upgrade is performed.

True

The Data Link layer utilizes what name for its protocol data unit (PDU)?

frame

Which of the following is a document that is sent as a request to vendors to submit a proposal for a product or service that your company wants to purchase?

request for proposal

If your network consists of all connected devices connecting to one central device, such as a switch, what type of topology is being used?

star topology

When planning horizontal cabling, what is the maximum allowable distance that can be used?

100 meters

What is a defining characteristic of a bus topology-based network?

Devices are daisy-chained together in a single line.

During termination of twisted-pair cabling, what should be done to ensure minimal crosstalk is introduced?

No more than 1 inch of the cable should be exposed.

In the TCP/IP model, what layer is considered so simple that it is ignored entirely?

Physical

What is NOT a TIA/EIA recognized cabling type that can be used for horizontal cabling?

RG-6 Coaxial

What does backbone cabling consist of?

The cables or wireless links that provide interconnection between the entrance facility and MDF, and between the MDF and IDFs.

A policy in which all exit doors for a building stay unlocked during a fire is an example of what type of policy?

fail-open