COMPSCI 90751

Type

Quiz

Book Title

Business Data Networks and Security 10th Edition

ISBN 13

978-0133544015

July 19, 2017

________ is a technique for preventing two wireless stations from transmitting at the

same time and therefore interfering with each other.

A) Creating extended service sets

B) Roaming

C) The distribution system

D) Media access control

The password "NeVEr" can be defeated by a ________.

A) dictionary attack

B) hybrid dictionary attack

C) brute-force attack

D) none of the above

A user picks the password "tiger." This is likely to be cracked quickly by a(n)

________.

A) attack on an application running as root

B) brute-force attack

C) dictionary attack

D) reverse engineering attack

If a frame passes through eight switches between the source and destination hosts on a

single network, how many data links will there be?

A) 1

B) 2

C) 8

D) 9

In the Five General Layers Standard, which layer's standards govern application World

Wide Web exchanges over the Internet?

A) 2

B) 3

C) 4

D) 5

Standards mean the same thing as ________.

A) semantics

B) syntax

C) rules

D) protocols

When a packet that is not part of an ongoing connection and that does not attempt to

open a connection arrives at a stateful inspection firewall, the firewall ________. (Read

this question carefully.)

A) drops the packet

B) passes the packet

C) opens a new connection

D) does not approve the connection

Which 802 working group created 802.11i?

A) 802.1

B) 802.3

C) 802.11

D) It was not an 802 working group. It was the Wi-Fi Alliance

Wireless LAN standards come from ________.

A) OSI

B) TCP/IP

C) both A and B

D) neither A nor B

What propagation problem is especially bad in moist air?

A) absorptive attenuation

B) electromagnetic interference

C) multipath interference

D) inverse square law attenuation

The UDP has ________ fields.

A) 4

B) 8

C) 16

D) 32

Advanced persistent threats are ________.

A) inexpensive for the attacker

B) extremely dangerous for the victim

C) both A and B

D) neither A nor B

The most widely used single network address is the ________.

A) EUI-48 address

B) MAC address

C) IP address

D) PPP address

An attacker must break through two firewalls to get to a host. This illustrates the

principle called ________. (Select the most specific answer.)

A) comprehensive security

B) risk assurance

C) having a DMZ

D) defense in depth

Tor provides confidentiality ________.

A) all the way to the destination host

B) up to the entry P2P node

C) up to the exit P2P node

D) Tor does not provide confidentiality.

Session keys are used to ________.

A) make cryptanalysis more difficult

B) improve authentication

C) both A and B

D) neither A nor B

Speech codecs vary with respect to ________.

A) compression

B) voice quality

C) both A and B

D) neither A nor B

At what layer are frames standardized?

A) physical

B) data link

C) Internet

D) all of the above

Near-field communication has a maximum transmission distance of about ________.

A) 400 cm/200 in

B) 40 cm/20 in

C) 4 cm/2 in

D) The devices must be physically touching.

For Netflix, Google is a(n) ________.

A) IaaS

B) SaaS

C) both A and B

D) neither A nor B

Communication between SDN applications and SDN controllers is governed by

________.

A) northbound APIs

B) southbound APIs

C) both A and B

D) neither A nor B

In 802.11i ________, hosts must know a shared initial key.

A) 802.1X mode

B) PSK mode

C) both A and B

D) neither A nor B

Application message fragmentation is done on the ________.

A) source host

B) destination host

C) both A and B

D) neither A nor B

For every conversation, a client randomly generates an ephemeral port number for

________.

A) applications

B) conversations

C) both A and B

D) neither A nor B

Which of the following is an integer?

A) 4,307

B) 45.7

C) both A and B

D) neither A nor B

If a packet is highly suspicious but not a provable attack packet, a(n) ________ may

drop it.

A) SPI firewall

B) IDS

C) IPS

D) all of the above

Implementation guidance is less specific than ________.

A) policy

B) implementation

C) standards

D) none of the above

Optical fiber's main advantage over UTP is ________.

A) lower cost

B) lower fragility

C) higher speed

D) greater distance span

An attack aimed at a single person or a small group of individuals is a(n) ________

attack. (Choose the most specific answer.)

A) phishing

B) spear phishing

C) highly targeted

D) customized

Which form of Bluetooth has a typical transmission speed of less than 3 Mbps?

A) classic Bluetooth

B) high-speed Bluetooth

C) personal Bluetooth

D) none of the above

If the subnet ID in an IPv6 address is 32 bits, how long is the routing prefix?

A) 16 bits

B) 32 bits

C) 64 bits

D) none of the above

The source socket is 60.171.18.22:2707. The source host is a(n) ________.

A) client

B) server

C) well-known server

D) ephemeral server

The meaning of a message is referred to as the message's ________.

A) protocol

B) order

C) syntax

D) semantics