Quick Tips 4

Question 1

IPSec BLANK mode protects the payload and header information of a packet, while IPSec BLANK mode protects only the payload.

Answer 1

tunnel, transport

Question 2

A BLANK lies between the perimeter router and the LAN, and a BLANK is a DMZ created by two physical firewalls.

Answer 2

screened-host firewall, screened subnet

Question 3

BLANK is used when companies do not want systems to know internal hosts’ addresses, and it enables companies to use private, nonroutable IP addresses.

Answer 3

NAT

Question 4

The BLANK standard outlines wireless personal area network (WPAN) technologies, and BLANK addresses wireless MAN technologies.

Answer 4

802.15, 802.16

Question 5

Environments can be segmented into different WLANs by using different BLANK.

Answer 5

SSIDs

Question 6

The BLANK standard works in the 2.4GHz range at 11 Mbps, and BLANK works in the 5GHz range at 54 Mbps.

Answer 6

802.11b, 802.11a

Question 7

IPv4 uses BLANK bits for its addresses, whereas IPv6 uses BLANK bits; thus, IPv6 provides more possible addresses with which to work.

Answer 7

32, 128

Question 8

BLANK allows large IP ranges to be divided into smaller, logical, and easier-to-maintain network segments.

Answer 8

Subnetting

Question 9

BLANK is a signaling protocol widely used for VoIP communications sessions.

Answer 9

SIP (Session Initiation Protocol)

Question 10

A new variant to the traditional e-mail spam has emerged on VoIP networks, commonly known as BLANK.

Answer 10

SPIT (Spam over Internet Telephony).

Question 11

BLANK is an SMTP server that is configured in such a way that it can transmit e-mail messages from any source to any destination.

Answer 11

Open relay

Question 12

IP fragmentation, teardrop, and overlapping fragments are BLANK.

Answer 12

fragment attacks

Question 13

Smurf and the Ping of Death use ICMP as their attack vectors and are BLANK.

Answer 13

DoS attacks

Question 14

BLANK is a type of phishing attack that takes place over telephone communication lines, and whaling is a phishing attack that zeros in on specific “big fish” targets.

Answer 14

Vishing

Question 15

SNMP uses BLANK. BLANK collect and maintain device-oriented data, which are held in management information bases. BLANK poll the agents using community string values for authentication purposes.

Answer 15

agents and managers, Agents, Managers

Question 16

Three main types of multiplexing are BLANK.

Answer 16

statistical time division, frequency division, and wave division

Question 17

BLANK provides a standardized packet format for delivering audio and video over IP networks. It works with BLANK, which provides out-of-band statistics and control information to provide feedback on QoS levels.

Answer 17

Real-time Transport Protocol (RTP), RTP Control Protocol

Question 18

BLANK provides a unique ID for a device. BLANK provides data encryption, integrity, and origin authentication functionality at the data link level. BLANK carries out key agreement functions for the session keys used for data encryption. Each of these standards provides specific parameters to work within an BLANK framework.

Answer 18

802.1 AR, 802.1 AE, 802.1 AF, 802.1X EAP-TLS