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