CDA 41397

Type

Quiz

Book Title

Business Data Networks and Security 10th Edition

ISBN 13

978-0133544015

July 19, 2017

In HTTP, the end of a header field is usually indicated by a ________.

A) bit position

B) CRLF

C) colon

D) blank line

After the data link layer process does encapsulation, it passes the IP packet to the

________ layer process.

A) physical

B) internet

C) transport

D) none of the above

There is an access point that serves eight wireless hosts. On how many channels will

these devices transmit and receive during the course of an hour or two?

A) 1

B) 2

C) 8

D) 9

Speech codecs ________.

A) translate human voice signals into digital signals for transmission

B) translate human voice signals into analog signals for transmission

C) both A and B

D) neither A nor B

TCP messages are called ________.

A) segments

B) fragments

C) packets

D) datagrams

The Wi-Fi Alliance calls 802.1X mode ________ mode.

A) enterprise

B) personal

C) WEP

D) WPA

Which of the following is true?

A) Guidelines must be followed.

B) Guidelines must be considered.

C) both A and B

D) neither A nor B

Which of the following is NOT one of the three categories of PBX services?

A) attendant services

B) management services

C) advanced services

D) user services

One-bit fields are called ________ fields.

A) SYN

B) flag

C) ACK

D) none of the above

In binary signaling there is (are) ________ state(s).

A) one

B) two

C) a number of

D) an infinite number of

Standards govern ________.

A) semantics

B) syntax

C) both A and B

D) neither A nor B

Which type of firewall filtering looks at application-layer content?

A) static packet filtering

B) stateful packet inspection

C) NGFW

D) all of the above

DSL offers ________.

A) voice transmission

B) data transmission

C) both A and B

D) neither A nor B

A packet will definitely get through if it has ________.

A) QoS reserved capacity

B) priority

C) both A and B

What type of switch connects users to the network?

A) user switches

B) core switches

C) access switches

D) workgroup switches

What happens if two nearby access points use the same channel?

A) They will interfere with each other.

B) They will be bonded for joint operation automatically.

C) They will be bonded for joint operation automatically if they are on the same ESS.

D) They will be bonded for joint operation automatically if they have the same SSID.

Which of the following specifies what should be done?

A) policies

B) implementation

C) both A and B

D) neither A nor B

Which of the following is the newest Wi-Fi standard?

A) 802.11ac

B) 802.11g

C) 802.11n

D) 802.11b

There is a row for each individual Ethernet address in a(n) ________.

A) Router table

B) Ethernet switching table

C) both A and B

D) neither A nor B

When a packet travels through a network, the time it takes to get from the sender to the

receiver is called ________.

A) latency

B) milliseconds

C) jitter

D) throughput

Standards tend to bring _________.

A) interoperability

B) higher prices

C) both A and B

D) neither A nor B

Guarantees by a provider to meet certain delivery quality specifications are called

________.

A) speed quality guarantees

B) service level agreements

C) service warranties

D) contracts

VoIP users have ________ in their phones or on their computers.

A) media gateways

B) codecs

C) both A and B

D) neither A nor B

In ________, the authenticator is the ________.

A) 802.1X, wireless access point

B) 802.11i, switch

C) 802.11i, wireless access point

D) 802.1X, central authentication server

Which of the following probably suffered the most financial damage from the Target

breach?

A) retailers other than Target

B) banks

C) consumers

D) POS terminal vendors

When the light energies of two pulses arrive at overlapping times, this is ________.

A) multimode transmission

B) modal bandwidth

C) modal dispersion

D) modal interference

Today's dominant cellular technology is ________.

A) LTE

B) 3G

C) HSPA+

D) MTSO

A TCP segment carries data octets 456 through 980. The following TCP segment is a

supervisory segment carrying no data. What value is in the sequence number field of

the latter TCP segment?

A) 456

B) 457

C) 980

D) 981

Which layer's standards govern delivering frames?

A) 1

B) 2

C) both A and B

D) neither A nor B

A 100/1 increase in power corresponds to approximately ________ decibels.

A) 6

B) 10

C) 20

D) none of the above

Which of the following offers more reliable antivirus protection?

A) antivirus software on user PCs

B) antivirus software on the mail server

C) Both A and B are about equally reliable.

The official name for Ethernet addresses is the ________ addresses.

A) MAC

B) EUI-48

C) both A and B

D) neither A nor B

Which light wavelength dominates in LANs?

A) 850 nm

B) 1,310 nm

C) 1,550 nm

D) 1 Gbps

In 802.11i, protection is provided between the client and the ________.

A) access point

B) switch

C) router

D) server

In which frequency band does NFC operate?

A) 2.4 GHz

B) 5 GHz

C) both A and B

D) neither A nor B