Question 1

A dipole antenna

Accepted Answer

A dipole antenna is commonly used in wireless communication devices such as access points and network interface cards (NICs) for its simplicity and effectiveness in transmitting and receiving signals.

Question 2

Which layer provides network services to any software application running on the network?

Accepted Answer

The Application layer provides network services to any software application running on the network. This layer is responsible for creating, managing, and terminating user sessions, as well as providing services such as email and file transfer. The Physical layer is responsible for transmitting raw data over the network, while the Network and Presentation layers are responsible for routing data and formatting it for transmission, respectively.

Question 3

A Windows computer is configured for DHCP. The computer is getting an IP address of 169.254.11.77, but it cannot communicate with other computers on the network, nor the email server. What is the most likely problem?

Accepted Answer

The IP address 169.254.11.77 is an Automatic Private IP Addressing (APIPA) address. This range is used when a computer configured for DHCP cannot reach the DHCP server to obtain an IP address. This indicates that the computer did not successfully get an IP address from the DHCP server.

Question 4

The analogy of a post office return receipt is used to describe what OSI model layer?

Accepted Answer

The analogy of a post office return receipt is used to describe the Transport layer of the OSI model, as it is responsible for ensuring complete data transfer and providing confirmation of delivery, similar to how a return receipt confirms the delivery of mail.

Question 5

What type of server would be used to store files for accessibility across the network?

Accepted Answer

FTP (File Transfer Protocol) servers are designed specifically for storing files and allowing for easy access across a network. It allows clients to transfer files to and from the server using various client applications. FTP is a secure and efficient way to store and share files across the network.

Question 6

Which safety tip is appropriate for network cabling?

Accepted Answer

The answer of Which safety tip is appropriate for network...

Question 7

A parabolic antenna would most likely be used in what situation?

Accepted Answer

A parabolic antenna is used to focus radio waves into a narrow beam and direct them to a specific point. Therefore, it is most likely to be used in a situation where a direct and focused communication link is needed between two points, such as between buildings.

Question 8

Each network interface card has a unique 48 bit number burned into ROM called a(n):

Accepted Answer

MAC address (Media Access Control address) is a unique identifier assigned to network interfaces for communications on the physical network segment. It is a 48-bit address burned into the NIC's ROM. Tokens are used in token-based network protocols like Token Ring. IP address is a unique identifier assigned to each device on a network, but it is not burned into the NIC's ROM. Host address could refer to either the IP address or the address used to identify a specific device on a network.

Question 9

Which type of address uses 128 bits?

Accepted Answer

IPv6 addresses use 128 bits, while IPv4 addresses use only 32 bits. LC refers to Logical Channel, which is not related to network addressing, and MAC addresses use 48 bits. Therefore, the correct answer is B.

Question 10

Which statement is true about an omnidirectional antenna?

Accepted Answer

An omnidirectional antenna can pick up signals from all around it. It is used when the source of the signal is not in a specific direction and the antenna needs to receive the signal from any direction.

Question 11

What command would be used to check the TCP/IP stack on a networked computer?

Accepted Answer

Ping 127.0.0.1 (loopback address) is used to check if the TCP/IP stack is installed and functioning correctly on a local machine.

Question 12

Antenna gain is normally shown using what two measurements?

Accepted Answer

Antenna gain is normally shown using the measurements dBi (decibels relative to an isotropic radiator) and dBd (decibels relative to a dipole antenna). Both are used to compare the strength of the antenna's signal to a theoretical isotropic radiator or dipole antenna. The dBi measurement is more commonly used as it represents the gain relative to an isotropic radiator, which is a theoretical antenna that radiates equally in all directions. The dBd measurement is more commonly used in the U.S. and represents the gain relative to a half-wave dipole antenna.

Question 13

The protocol suite used for Internet connectivity is

Accepted Answer

The TCP/IP protocol suite is the primary protocol suite used for Internet connectivity. It includes the Transmission Control Protocol (TCP) for reliable data transmission and the Internet Protocol (IP) for addressing and routing packets. NetBEUI and IPX/SPX were used in some older networks, but are not commonly used today.

Question 14

A technology that can transmit data over a traditional voice line is

Accepted Answer

DSL (Digital Subscriber Line) technology uses existing copper telephone lines to transmit data at high speeds, making it a quick and cost-effective way to connect to the internet.

Question 15

Connectors, cables, and voltage levels are defined at which level in the OSI model?

Accepted Answer

Connectors, cables, and voltage levels are physical attributes and are defined at the Physical layer of the OSI model.

Question 16

Sometimes, when logging on to a network, you must provide a userid and password or authenticate yourself. What OSI layer handles authentication?

Accepted Answer

Authentication is handled at the Application layer of the OSI model. This is because it is a user-oriented process and requires interaction with the application layer protocols such as HTTPS, SSH, or FTPS.

Question 17

Before installing a wireless network, you should prepare by performing what task?

Accepted Answer

Performing a site survey is crucial before installing a wireless network. This involves assessing the physical layout of the environment, identifying potential sources of interference, determining the optimal placement of access points, and evaluating signal strength and coverage. This helps ensure that the wireless network is properly designed and deployed for maximum performance and reliability. Calibration of the antenna, response testing by wireless clients, and authentication testing on the access point are all important tasks to perform during and after installation, but they are not preparation activities.

Question 18

Which statement best describes an SSID?

Accepted Answer

An SSID (Service Set Identifier) is a unique identifier that is assigned to a wireless network. It is used by wireless clients to identify and connect to a specific network.

Question 19

What type of server translates domain names to IP addresses?

Accepted Answer

DNS (Domain Name System) servers are responsible for translating domain names (e.g. www.example.com) to their corresponding IP addresses (e.g. 192.0.2.1). This allows users to access websites without having to remember numerical IP addresses.

Question 20

The function of the router is found at which level in the OSI model?

Accepted Answer

Routers operate at the Network layer of the OSI model, which is responsible for routing and forwarding data between different networks. The Network layer is also where IP addresses are used to identify and address devices on a network.

Quiz 14: Introduction to Networking