[DummyTron]

80.

A _____ is a defined method for communicating between systems.
a.

protocol data unit

c.

protocol
b.

datagram

d.

language




81.

Which of the following layers is/are aware of the activities that are taking place at the Network layer on the opposite side of the communication process?
a.

Data Link, Network, Transport

c.

Network, Transport
b.

Data Link, Network

d.

Network




82.

What does the Data Link layer use to provide error control?
a.

Check Sum

c.

Parity
b.

CRC

d.

none of the above




83.

Before networks, what was used to transfer files?
a.

Floppy disks

c.

Protocols
b.

File Control Server

d.

Internet




84.

Which of the following devices is used to maintain storage space for data that is shared with clients?
a.

Print server

c.

Database server
b.

File server

d.

Web server




85.

The first six hexadecimal digits of a MAC address assigned to NIC manufacturers is sometimes called a(n) _____.
a.

Organizational ID Number

c.

Unit Block Number
b.

Organizational Unit Identifier

d.

Serial Number




86.

The degradation of signal clarity is called _____.
a.

attenuation

c.

signal loss
b.

interference

d.

weakening




87.

Hubs that are plugged into electric power are called _____ hubs.
a.

passive

c.

powered
b.

active

d.

dynamic




88.

A hub that merely connects different cables on the network and provides no signal regeneration is called a(n) _____ hub and is not a repeater.
a.

passive

c.

powered
b.

active

d.

static




89.

_____ operate at the Data Link layer of the OSI model.
a.

Repeaters

c.

Bridges
b.

Hubs

d.

Brouters




90.

_____ bridges are also called learning bridges because they build a table of MAC addresses as they receive frames.
a.

Dynamic

c.

Source-routing
b.

Transparent

d.

Static




91.

When machines must share the wire and compete for available bandwidth with other machines, they experience _____.
a.

convections

c.

contention
b.

collisions

d.

contraction




92.

Switches operate at the _____ layer of the OSI model.
a.

Physical

c.

Network
b.

Data Link

d.

Transport




93.

TCP/IP and IPX/SPX protocols span the Network layer and the _____ layer of the OSI reference model.
a.

Physical

c.

Network
b.

Data Link

d.

Transport




94.

Routers operate at the _____ layer of the OSI model.
a.

Physical

c.

Network
b.

Data Link

d.

Transport




95.

What type of frames are not forwarded by a router?
a.

Broadcast

c.

IP
b.

IPX

d.

Storm




96.

What are broadcast domains created with?
a.

Switches

c.

Routers
b.

Bridges

d.

Hubs




97.

Which of the following is/are benefits of Ethernet LAN segmentation with switches?
a.

Decreased collisions

d.

both a and b
b.

Increased bandwidth

e.

both a and c
c.

Eliminated broadcasts




98.

Which of the following devices is/are used to segment a network?
a.

Switches

c.

Bridges
b.

Routers

d.

all of the above




99.

Using a repeater on a network provides which of the following benefits?
a.

An increase in the size of collision domains
b.

A decrease in the size of collision domains
c.

An increase in the effective bandwidth per segment
d.

An increase in the number of collision domains
e.

none of the above




100.

A router that has four ports will require how many IP addresses?
a.

1

c.

6
b.

4

d.

8




101.

What type of addresses do bridges use?
a.

MAC

c.

IP
b.

Logical

d.

TCP




102.

Which device translates between different protocol suites?
a.

Bridge

c.

Gateway
b.

Switch

d.

Router




103.

Typically, which device is the “device of choice” for increasing performance on your network?
a.

Hub

c.

Bridge
b.

Switch

d.

Router




104.

On which of the following states do digital signals communicate?
a.

zero

d.

both a and b
b.

one

e.

both a and c
c.

five




105.

Repeaters operate at the _____ layer of the OSI model.
a.

Physical

c.

Network
b.

Data Link

d.

Transport




106.

In most respects, a wireless access point functions exactly like a _____.
a.

hub

c.

bridge
b.

switch

d.

router




107.

Ethernet networks are characterized by which IEEE standard?
a.

802.1

c.

802.5
b.

802.3

d.

802.11




108.

Which access method specifies that each node must first listen to the network medium to determine if the medium is currently free of packets?
a.

CSMA/CA

c.

Token Passing
b.

CSMA/CD

d.

Direct




109.

The TCP/IP protocol suite is a network model with _____ layers.
a.

4

c.

6
b.

5

d.

7




110.

_____ permits remote tracking and management of TCP/IP hosts.
a.

FTP

c.

SMTP
b.

NFS

d.

SNMP




111.

The Network Interface layer of the TCP/IP model maps to both the _____ and Physical layers of the OSI reference model.
a.

Data Link

c.

Transport
b.

Network

d.

Session




112.

The _____ service provides TCP/IP host name to IP address resolution.
a.

DNS

c.

SMTP
b.

HTTP

d.

SNMP




113.

Well Known TCP Port _____ is for FTP data transfer.
a.

20

c.

22
b.

21

d.

23




114.

Well Known UDP Port _____ is used by TFTP.
a.

53

c.

80
b.

69

d.

161




115.

Well Known TCP Port _____ is used by SMTP.
a.

25

c.

69
b.

53

d.

80




116.

The _____ layer in the TCP/IP model handles software, or logical, addressing.
a.

Internetwork

c.

Transport
b.

Application

d.

Network Interface




117.

The _____ protocol resolves IP addresses to MAC addresses for source hosts that know the IP addresses of the destination host but not the MAC address.
a.

ICMP

c.

RARP
b.

ARP

d.

CARP




118.

_____ different groups of IP addresses exist on the Internet.
a.

Three

c.

Five
b.

Four

d.

Six




119.

Each Class A address supports _____ hosts.
a.

16,186,032

c.

16,456,096
b.

16,289,048

d.

16,777,214




120.

Each Class B address supports _____ hosts.
a.

64,064

c.

64,256
b.

64,128

d.

65,534