Chapter Quiz 11-12-14

Question 1

In a ____ attack, a person redirects or captures secure transmissions as they occur.
a. denial-of service
c. war driving
b. man-in-the-middle
d. phishing

Answer 1

b. man-in-the-middle

Question 2

A NOS that contains a “back door”is an example of a risk associated with ____.
a. people
b. transmission and hardware
c. protocols and software
d. Internet access

Answer 2

c. protocols and software

Question 3

A ____ main function is to examine packets and determine where to direct them based on their Network layer addressing information.
a. switch’s
b. gateway’s
c. router’s
d. proxy server’s

Answer 3

c. router’s

Question 4

The combination of a public key and a private key is known as a ____.
a. key lock
b. key frame
c. key pair
d. key set

Answer 4

c. key pair

Question 5

In ____, a hacker forges name server records to falsify his host’s identity.
a. IP spoofing
b. DNS spoofing
c. ID spoofing
d. DHCP spoofing

Answer 5

b. DNS spoofing

Question 6

Using VoIP over a WAN allows an organization to avoid paying long-distance telephone charges, a benefit known as ____.
a. charge bypass
b. distance bypass
c. toll bypass
d. easypass

Answer 6

c. toll bypass

Question 7

In general, a(n) ____ is a private switch that accepts and interprets both analog and digital voice signals.
a. IP-PBX
b. analog PBX
c. Data PBX
d. IT-PBX

Answer 7

a. IP-PBX

Question 8

One drawback to ____ video is that content may not be edited before it’s distributed.
a. on demand
b. live streaming
c. streaming server
d. VoIP

Answer 8

b. live streaming

Question 9

SIP and H.323 regulate ____ for VoIP or video-over-IP clients and servers.
a. call signaling only
b. control only
c. call signaling and control
d. communication between media gateways

Answer 9

c. call signaling and control

Question 10

____ is a measure of how well a network service matches its expected performance.
a. QoS
b. RSVP
c. DiffServ
d. MPLS

Answer 10

a. QoS

Question 11

____ is intended to eliminate single points of failure.
a. Availability
b. Redundancy
c. Contingency
d. Integrity

Answer 11

b. Redundancy

Question 12

____ scanning detects malware by comparing a file’s content with known malware signatures in a signature database.
a. Integrity checking
b. Polymorphic
c. Signature
d. Heuristic

Answer 12

c. Signature

Question 13

____ scanning techniques attempt to identify malware by discovering “malware-like” behavior.
a. Integrity checking
b. Polymorphic
c. Signature
d. Heuristic

Answer 13

d. Heuristic

Question 14

____ is an automatic distribution of traffic over multiple links or processors is used to optimize response.
a. Redundancy
b. Failover
c. RAID
d. Load balancing

Answer 14

d. Load balancing

Question 15

____ are distinct networks of storage devices that communicate directly with each other and with other networks.
a. NAS
b. RAID
c. SANs
d. Optical media

Answer 15

c. SANs

Question 16

A(n) ___identifies an organization’s security risks, levels of authority, designated security coordinator and team members, responsibilities for each team member, and responsibilities for each employee.

Answer 16

Security policy

Question 17

A(n) ____________________ is a software application on a network host that acts as an intermediary between the external and internal networks, screening all incoming and outgoing traffic.

Answer 17

Proxy service

Question 18

____________________ performs the same functions as MGCP, but using different commands and processes.

Answer 18

MEGACO

Question 19

____________________ is a QoS technique that replaces the IP datagram header with a label at the first router a data stream encounters.

Answer 19

MPLS

Question 20

____________________ is the process of restoring your critical functionality and data after an enterprise-wide outage that affects more than a single system or a limited group of users.

Answer 20

Disaster recovery

Question 21

Explain how to block traffic attempting to exit a LAN and discuss why an administrator would want to do this.

Answer 21

Use packet-filtering firewalls to stop worms from spreading. or use ACL to control access of packets

Question 22

Explain why UDP is preferred over TCP for real-time applications such as telephone conversations and videoconferences.

Answer 22

TCP is connection-oriented
UDP is connectionless

because UDP is connectionless it helps with videoconferences and telephone conversations and becseu of that UDP is faster as it doesn’t need a connection to send packets

Question 23

What is integrity checking?