Security+ Chapter 9

Which of the following is an example of a MAC address? - 00:07:H9:c8:ff:00 - 00:39:c8:ff:00 - 00:07:e9:c8:ff:00 - 00:07:59:c8:ff:00:e8

00:07:e9:c8:ff:00

Which of the following is a valid IP address? - 192.168.1.1.1 - 10.266.12.13 - 172.11.11 - 12.12.12.12

12.12.12.12

Which of the following is not a private IP address? - 10.100.200.100 - 172.32.32.21 - 192.168.1.1 - 192.168.254.254

172.32.32.21

IP addresses are __________ bit numbers - 6 - 32 - 64 - 128

32

Which protocol is responsible for resolving an IP address to a MAC address? - DNS - ARP - RARP - ICMP

ARP

Which protocol is based on transferring data in fixed-size packets? (The fixed packet sizes help ensure that no single data type monopolizes the available bandwidth.) - AppleTalk - ATM - FDDI - Token Ring

ATM

A network protocol is - An agreed upon format for exchanging or transmitting data between systems - A set of rules that employees must follow to accomplish a specific task - One of the layers of the OSI model - One of the headers in an IP packet

An agreed upon format for exchanging or transmitting data between systems

A(n) _______ class address supports 65,000 hosts on each of 16,000 networks, and allows three sections of the IP address to be devoted to host addressing. - A - B - C - D

B

Network components connected to the same cable are often called "the backbone" in which topology? - Star - Bus - Ring - Hybrid

Bus

Which of the following is a benefit that Network Address Translation (NAT) provides - Compensates for the lack of IP addresses - Allows devices using two different protocols to communicate - It creates a DMZ - Translates MAC addresses to IP addresses

Compensates for the lack of IP addresses

The network that is an extension of a selected portion of a company's intranet to external partners is referred to as the - DMZ - Intranet - Extranet - Internet

Extranet

Address Resolution Protocol resolves a MAC address to an IP address. True or False

False

ICMP is a connection-oriented protocol. True or False

False

Networks without any architecture are considered to be poor. True or False

False

TCP is connectionless and has lower overhead than UDP. True or False

False

UDP uses a three-way handshake to establish connections. True or False

False

Packet delivery to distant systems is usually accomplished by the use of - MAC addresses - Domain names - IP Addresses - ARP protocol

IP Addresses

Which of the following is NOT a network topology? - Star - Ring - Integrated - Mixed

Integrated

The series of worldwide interconnected networks is referred to as the - DMZ - Intranet - Extranet - Internet

Internet

A network that lies completely inside a trusted area of a network, and is under the security control of the system and network administrators, is referred to as the - DMZ - Intranet - Extranet - Internet

Intranet

Unfortunately hackers abuse the ICMP protocol by using it to - Send internet worms - Launch denial-of-service (DoS) attacks - Steal passwords and credit card numbers - Send spam

Launch denial-of-service (DoS) attacks

Packets delivered to a network, such as an office LAN, are usually sent using the destination system's - IP address - MAC address - Apple address - Logical address

MAC address

Which of the following improves the security of the network by hiding internal addresses? - Antivirus - IDS - Star topology - Network Address Translation (NAT)

Network Address Translation (NAT)

What is called when network components are connected to each other in a closed loop, with each device directly connected to two other devices. - Star - Bus - Ring - Hybrid

Ring

The correct sequence of the three-way handshake is - SYN/SYN, ACK/ACK, SYN/SYN - SYN/ACK, SYN/ACK, SYN/ACK - SYN, SYN/ACK, ACK - ACK, SYN/ACK, SYN

SYN, SYN/ACK, ACK

All of the following are advantages of TCP over UDP EXCEPT: - Guaranteed delivery - Sequenced packets - Smaller header - Three-way handshake to establish connection

Smaller header

All the network components are connected to a central point in which topology? - Star - Bus - Ring - Hybrid

Star

Which transport layer protocol is connection oriented? - UDP - TCP - IP - ICMP

TCP

The main difference between TCP and UDP packets is - UDP packets are a more widely used protocol. - TCP packets are smaller and thus more efficient to use. - TCP packets are connection oriented, whereas UPD packets are connectionless. - UDP is considered to be more reliable because it performs error checking.

TCP packets are connection oriented, whereas UPD packets are connectionless.

Network Address Translation (NAT) - Translates private (non-routable) IP addresses into public (routable) IP addresses - Translates the IP addresses of one protocol to the IP address of another protocol - Is one of the items in an IP packet header - Translates MAC addresses to IP addresses

Translates private (non-routable) IP addresses into public (routable) IP addresses

A DMZ acts as a buffer zone between the Internet, where no controls exist, and the inner, secure network, where an organization has security policies in place. True or False

True

A network can logically appear as one topology, but physically match a different topology. True or False

True

DNS resolves a domain name to an IP address. True or False

True

LAN and WAN networks can be connected. True or False

True

NAT translates private (nonroutable) IP addresses into public (routable) IP addresses. True or False

True

Encapsulating packets so they can traverse the network in a secure, confidential manner is referred to as - DMZ - Steganography - Tunneling - Layered defense

Tunneling

Which transport layer protocol is connectionless? - UDP - TCP - IP - ICMP

UDP

A logical implementation of a LAN that allows computers connected to different physical networks to act and communicate as if they were on the same physical network is referred to as a - DMZ - VLAN - Extranet - Tunnel

VLAN

A ________ is a network typically smaller in terms of size and geographic coverage and consist of two or more connected devices. Home or office networks are typically classified as this type of network. - local area network - office area network - wide area network - internal area network

local area network