Question 1

The simplest method for mapping host names to IP addresses is by placing entries into the /etc/hosts file. _________________________

Accepted Answer

This is true. The /etc/hosts file is a simple text file on Unix-based operating systems that can be edited manually to map host names to IP addresses. However, this method is not scalable for larger networks and is often replaced by DNS (Domain Name System).

Question 2

The ____ command sends a small TCP/IP packet to another IP address and awaits a response.
A) ping
B) ring
C) png
D) ipquery

Accepted Answer

The ping command is used to test connectivity between two network devices by sending a small packet of data (ICMP) to the other device and waiting for a response. This is a basic network troubleshooting tool that can help determine if a device is reachable on the network.

Question 3

A route table is a list of TCP/IP networks that is stored in system memory.

Accepted Answer

A route table is a list of TCP/IP networks that is stored in system memory. It is used by network devices, such as routers and switches, to determine the best path for forwarding network traffic.

Question 4

The IP addresses ____ and ____ are not allowed to be assigned to a host computer because they refer to all networks and all computers on all networks, respectively.
A) 1.1.1.1; 255.255.255.255
B) 0.0.0.0; 255.255.255.255
C) 0.0.0.0; 256.256.256.256
D) 1.1.1.1; 256.256.256.256

Accepted Answer

The IP address 0.0.0.0 refers to all networks, and the IP address 255.255.255.255 refers to all computers on all networks. These addresses are reserved and cannot be assigned to a host computer. The other options given in the question are invalid IP addresses.

Question 5

Class D addresses are used for multicasting.

Accepted Answer

Class D addresses are designated for multicast addressing.

Question 6

Directed communication from one computer to another single computer using TCP/IP is referred to as a(n) unicast. _________________________

Accepted Answer

This is true. In unicast communication, a message is sent from one sender to one recipient (single computer). TCP/IP (Transmission Control Protocol/Internet Protocol) is the most widely used standard for communication over the internet using a packet-switched network.

Question 7

SLIP is a newer technology than PPP.

Accepted Answer

PPP (Point-to-Point Protocol) was standardized in 1994, while SLIP (Serial Line Internet Protocol) was developed in the late 1980s. Therefore, SLIP is an older technology than PPP.

Question 8

The subnet mask for a Class B IP address is ____.
A) 255.0.0.0
B) 255.255.0.0
C) 255.255.255.0
D) 255.255.255.255

Accepted Answer

For a Class B IP address, the default subnet mask is 255.255.0.0, which allows for up to 65,534 hosts on each network. The subnet mask determines the network portion and the host portion of an IP address. Option A is the subnet mask for a Class A IP address, option C is the subnet mask for a Class C IP address, and option D represents a broadcast address.

Question 9

The ____ command can be used to assign a TCP/IP configuration to a NIC as well as view the configuration of all network interfaces in the computer.
A) ipconfig
B) ifconf
C) ipconf
D) ifconfig

Accepted Answer

The "ifconfig" command is used in Unix/Linux systems to configure network interfaces and view their configurations.

Question 10

The most common LAN protocol used today is ____.
A) UDP/IP
B) IPX/SPX
C) TCP/IP
D) DLC

Accepted Answer

TCP/IP is the most widely used LAN protocol today. It is the backbone of the internet and is compatible with most operating systems. UDP/IP is a alternative to TCP/IP but is less reliable as it does not guarantee delivery of packets. IPX/SPX is an old protocol that was popular in the past but has been largely replaced by TCP/IP. DLC (Data Link Control) is a sublayer of the OSI model that is used to manage communication between devices on the same physical network segment.

Question 11

IPv6 IP addresses are delimited by the ____ character.
A) ;
B) :
C) .
D) ,

Accepted Answer

IPv6 addresses are delimited with colons (:), whereas IPv4 addresses use periods (.).

Question 12

IPv6 IP addresses are written using eight 16-bit ____ numbers.
A) hexadecimal
B) decimal
C) binary
D) octal

Accepted Answer

IPv6 IP addresses are written in hexadecimal format, which consists of 16 possible characters ranging from 0-9 and A-F. These addresses are divided into eight groups of four characters each, separated by colons. Each group consists of 16 bits, making a total of 128 bits for the entire IPv6 address.

Question 13

The most common media access method used to send TCP/IP packets onto network media is called Token Ring. _________________________

Accepted Answer

Ethernet

Question 14

Home users can use a LAN, but not a WAN.

Accepted Answer

Home users can use both LAN (Local Area Network) and WAN (Wide Area Network) depending on their internet connectivity and networking requirements. LAN is a network that covers a small geographical area, such as a home or office building, while WAN covers a large geographical area, such as cities or countries, and connects multiple LANs. Home users can connect to the internet through a WAN provided by their internet service provider (ISP) and communicate with other devices over a LAN within their home network.

Question 15

The ssh command has traditionally been used to obtain a command-line shell on remote Linux servers. _________________________

Accepted Answer

telnet

Question 16

Passwords used by the PPP daemon are stored in two files: /etc/ppp/pap-secrets and /etc/ppp/chap-secrets.

Accepted Answer

This is correct. PPP daemon passwords are stored in /etc/ppp/pap-secrets and /etc/ppp/chap-secrets files.

Question 17

In an IP address, the host ID represents the network on which the computer is located. _________________________

Accepted Answer

network

Question 18

Computer names are called ____.
A) host IDs
B) network names
C) host names
D) network IDs

Accepted Answer

Computer names are called host names. They are used to identify a specific computer or device on a network. Host IDs are used for IP addressing, network names refer to the name of the network, and network IDs are used to identify a specific network segment.

Question 19

Each octet in an IP address represents a(n) ____ binary number.
A) 4-bit
B) 8-bit
C) 4-byte
D) 8-byte

Accepted Answer

An octet in an IP address is made up of 8 bits, which can represent a number from 0 to 255 in binary form (2^8=256). Therefore, each octet is an 8-bit binary number.

Question 20

The subnet mask for a Class C IP address is ____.
A) 255.0.0.0
B) 255.255.0.0
C) 255.255.255.0
D) 255.255.255.255

Accepted Answer

For a Class C IP address, the first three octets (24 bits) are reserved for network addressing and the last octet (8 bits) is for host addressing. The subnet mask for Class C is 255.255.255.0, which means that the first 24 bits are used for network addressing and the last 8 bits are used for host addressing within that network. A subnet mask of 255.255.255.255 would be a broadcast address and not a valid subnet mask. A subnet mask of 255.0.0.0 or 255.255.0.0 is used for Class A or Class B IP addresses, respectively.

Quiz 12: Network Configuration

The simplest method for mapping host names to IP addresses is by placing entries into the /etc/hosts file. _________________________

The ____ command sends a small TCP/IP packet to another IP address and awaits a response.

A route table is a list of TCP/IP networks that is stored in system memory.

The IP addresses and are not allowed to be assigned to a host computer because they refer to all networks and all computers on all networks, respectively.

Class D addresses are used for multicasting.

Directed communication from one computer to another single computer using TCP/IP is referred to as a(n) unicast. _________________________

SLIP is a newer technology than PPP.

The subnet mask for a Class B IP address is ____.

The ____ command can be used to assign a TCP/IP configuration to a NIC as well as view the configuration of all network interfaces in the computer.

The most common LAN protocol used today is ____.

IPv6 IP addresses are delimited by the ____ character.

IPv6 IP addresses are written using eight 16-bit ____ numbers.

The most common media access method used to send TCP/IP packets onto network media is called Token Ring. _________________________

Home users can use a LAN, but not a WAN.

The ssh command has traditionally been used to obtain a command-line shell on remote Linux servers. _________________________

Passwords used by the PPP daemon are stored in two files: /etc/ppp/pap-secrets and /etc/ppp/chap-secrets.

In an IP address, the host ID represents the network on which the computer is located. _________________________

Computer names are called ____.

Each octet in an IP address represents a(n) ____ binary number.

The subnet mask for a Class C IP address is ____.