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Networking Essentials Ch 3 Review

Total questions: 25

Worksheet time: 2hrs 5mins

Name
Class
Date
1.

At what layer of the OSI model does a switch operate?

a)

Physical

b)

Data Link

c)

Network

d)

Transport

2.

These TWO layers of the OSI model are combined in the network access layer of the TCP/IP model. (Pick Two!)

a)

Physical

b)

Data Link

c)

Network

d)

Transport

3.

These THREE layers of the OSI model are combined in the TCP/IP model. (Pick Three!)

a)

Application

b)

Presentation

c)

Session

d)

Transport

4.

There were two models discussed in the chapter. Which one of them is a reference model?

a)

OSI

b)

TCP/IP

5.

There were two models discussed in the chapter. Which one of them is a protocol model?

a)

OSI

b)

TCP/IP

6.

A series of protocols that have to be used together to accomplish a task are called this.

a)

Protocol Stack

b)

Protocol Model

c)

Protocol Reference

d)

RFC

7.

This is the IEEE standard for Ethernet

a)

802.3

b)

802.11

c)

802.15

d)

T568B

8.

Which of the following is NOT a reason why having network protocols and models is a good thing?

a)

Compatibility between networks and devices

b)

Encourages manufacturers to compete

c)

Encourages manufacturers to innovate

d)

Guarantees lower prices and communications will work

9.

Which of the following is NOT one of the things that network protocols would focus on defining?

a)

Message timing and size

b)

Message encapsulation and pattern

c)

Message format and encoding

d)

Message content and information

10.

This is the layer of the hierarchical design that user connect their devices to.

a)

Core

b)

Distribution

c)

Access

d)

Physical

11.

How many broadcast domains are there in this network?

a)

2

b)

3

c)

4

d)

5

12.

Which of the following are reasons to divide your LAN up into segments? (Pick Two!)

a)

Better security

b)

Better performance

c)

More broadcast traffic

d)

Less organization

13.

This layer of hierarchical design is responsible for high speed backbone switching of data.

a)

Core

b)

Distribution

c)

Access

d)

Network

14.

The OUI part of the MAC address identifies this.

a)

The specific NIC sending communication.

b)

The manufacturer of the NIC.

c)

The network the NIC is on.

d)

The speeds the NIC is capabale of.

15.

The protocol data unit (PDU) at layer two of the OSI model is called what?

a)

frame

b)

packet

c)

bit

d)

segment

16.

This is the maximum size of an Ethernet frame.

a)

1500 bytes

b)

1518 bytes

c)

64 bits

d)

300 mbps

17.

This layer of the OSI model is where you would see bits represented by flashes of light.

a)

physical

b)

data link

c)

network

d)

transport

18.

Which of the following commands could be used to find the MAC address of a host? (Pick Two!)

a)

ipconfig /all

b)

arp -a

c)

dir

d)

ipconfig /renew

19.

This part of an Ethernet frame looks for errors.

a)

Header

b)

Preamble

c)

FCS

d)

Destination MAC address

20.

This is why your computer maintains an ARP table.

a)

So it can map MAC addresses to the IP addresses when sending messages.

b)

So it can verify connectivity with other hosts.

c)

So it can map domain names to IP addresses.

d)

So it can get configuration information from a DHCP server.

21.

The protocol data unit (PDU) at the network layer of the OSI model is called what?

a)

frame

b)

packet

c)

bit

d)

segment

22.

This is the process of representing the data in a way that it can be carried by the medium being used.

a)

encoding

b)

encapsulating

c)

encrypting

d)

authenticating

23.

This is the process of taking a message and adding headers that will help it get to its destination.

a)

encoding

b)

encapsulating

c)

encrypting

d)

authenticating

24.

Another name for a MAC address is _________.

Another name for a IP address _____________.

a)

Physical, Logical

b)

Logical, Physical

c)

Logical, Hardware

d)

Logical, Burned in Address

25.

Routers operate at this later of the TCP/IP model.

a)

Application

b)

Transport

c)

Network Access

d)

Internet