Network Standards and Protocols: Master the Fundamentals of Network Communication

Question 1

Which layer in the TCP/IP model is responsible for establishing and maintaining connections?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 2

The physical layer in networking is primarily concerned with:

Accepted Answer

Transmitting and receiving electrical signals

Answer

Establishing network connections

Answer

Routing data packets through the network

Answer

Ensuring reliable data transmission

Question 3

Which of the following protocols is connectionless and unreliable?

Accepted Answer

UDP

Answer

TCP

Answer

HTTP

Answer

FTP

Question 4

The source IP address in an IP packet is used to:

Accepted Answer

Identify the source of the packet

Answer

Identify the destination of the packet

Answer

Determine the path the packet should take

Answer

Encapsulate data in the packet

Question 5

Which of the following application-layer protocols is used for transferring email messages?

Accepted Answer

SMTP

Answer

HTTP

Answer

FTP

Answer

SSH

Question 6

The 802.11 standard defines the physical and data link layers for:

Accepted Answer

Wireless LANs

Answer

Ethernet networks

Answer

Fiber optic networks

Answer

Cellular networks

Question 7

The media access control (MAC) address is a unique identifier associated with which layer of the TCP/IP model?

Accepted Answer

Data Link

Answer

Physical

Answer

Network

Answer

Transport

Question 8

The IEEE 802.15 standard is primarily designed for:

Accepted Answer

Wireless personal area networks

Answer

High-speed networks

Answer

Enterprise networks

Answer

Satellite communications

Question 9

Which IEEE 802 standard defines the physical layer and medium access control (MAC) protocols for Ethernet networks?

Accepted Answer

802.3

Answer

802.11

Answer

802.15

Answer

802.22

Question 10

Within the TCP/IP model, which layer is responsible for ensuring reliable data transfer between end systems?

Accepted Answer

Transport Layer

Answer

Network Layer

Answer

Application Layer

Answer

Data Link Layer

Question 11

Which of the following is NOT a characteristic of UDP?

Accepted Answer

Reliable

Answer

Connectionless

Answer

Low latency

Answer

Best-effort delivery

Question 12

Which application-layer protocol is specifically designed for transferring files over the Internet?

Accepted Answer

FTP

Answer

HTTP

Answer

SMTP

Answer

DNS

Question 13

Which IEEE 802 standard defines the protocols for wireless local area networks (WLANs), commonly known as Wi-Fi?

Accepted Answer

802.11

Answer

802.3

Answer

802.15

Answer

802.22

Question 14

What is the primary function of the Internet Protocol (IP) in network communication?

Accepted Answer

Assigning unique addresses to network devices for end-to-end communication

Answer

Establishing reliable connections between hosts

Answer

Managing data flow and congestion control

Answer

Translating domain names to IP addresses

Question 15

Which IEEE 802 standard defines the protocols for low-power wireless networks commonly used in sensor networks and Internet of Things (IoT) devices?

Accepted Answer

802.15

Answer

802.3

Answer

802.11

Answer

802.22

Question 16

Which application-layer protocol is primarily utilized for sending and receiving electronic mail (email)?

Accepted Answer

SMTP

Answer

HTTP

Answer

FTP

Answer

DNS

Question 17

Which fundamental characteristic of the Carrier Sense Multiple Access with Collision Detection (CSMA/CD) protocol helps prevent collisions in Ethernet networks?

Accepted Answer

Detecting carrier signals to avoid simultaneous transmissions

Answer

Assigning unique addresses to devices on the network

Answer

Providing a guaranteed bandwidth to each device

Answer

Allowing multiple devices to transmit simultaneously

Question 18

Within the Data Link Layer, which sublayer is responsible for encapsulating network data into transmittable units, known as frames?

Accepted Answer

Media Access Control (MAC)

Answer

Logical Link Control (LLC)

Answer

Physical Layer (PHY)

Answer

Address Resolution Protocol (ARP)

Question 19

Which characteristic best describes UDP?

Accepted Answer

Connectionless

Answer

Connection-oriented

Answer

Reliable

Answer

Ordered

Question 20

What is the primary function of a MAC address in network communication?

Accepted Answer

Identifies the physical device on the network

Answer

Provides routing information

Answer

Encrypts data

Answer

Regulates network traffic

Question 21

Which of the following protocols operates at the application layer?

Accepted Answer

HTTP

Answer

TCP

Answer

IP

Answer

802.11

Question 22

What is the key difference between IPv4 and IPv6?

Accepted Answer

Address length

Answer

Header format

Answer

Routing algorithm

Answer

Transmission speed

Question 23

Which IEEE 802.11 standard is associated with wireless LANs operating in the 5 GHz frequency band?

Accepted Answer

802.11a

Answer

802.11b

Answer

802.11g

Answer

802.11n

Question 24

What is the primary function of the Domain Name System (DNS)?

Accepted Answer

Converts domain names to IP addresses

Answer

Provides email services

Answer

Routes network traffic

Answer

Protects against cyberattacks

Question 25

Which of the following is NOT an advantage of network virtualization?

Accepted Answer

Guaranteed network performance

Answer

Increased flexibility

Answer

Improved resource utilization

Answer

Reduced network management complexity

Question 26

What is the main purpose of a network firewall?

Accepted Answer

To prevent unauthorized access to a network

Answer

To monitor network traffic for security threats

Answer

To optimize network performance

Answer

To provide data encryption

Question 27

Which protocol operates at the transport layer and provides reliable, connection-oriented data transfer?

Accepted Answer

TCP

Answer

UDP

Answer

IP

Answer

ICMP

Question 28

What is the primary function of a MAC address?

Accepted Answer

Physical addressing

Answer

Network addressing

Answer

Logical addressing

Answer

Port addressing

Question 29

Which application-layer protocol is used for transferring web pages?

Accepted Answer

HTTP

Answer

FTP

Answer

SMTP

Answer

DNS

Question 30

Which IEEE 802.11 standard defines the specifications for Wi-Fi networks operating in the 2.4GHz frequency band?

Accepted Answer

802.11b

Answer

802.11a

Answer

802.11ac

Answer

802.11n

Question 31

What is the main purpose of the sliding window protocol in TCP?

Accepted Answer

Flow control

Answer

Congestion control

Answer

Error control

Answer

Routing

Question 32

Which protocol is responsible for resolving domain names to IP addresses?

Accepted Answer

DNS

Answer

HTTP

Answer

FTP

Answer

SMTP

Question 33

Which IEEE standard defines the physical layer and media access control (MAC) protocols for wired Ethernet networks?

Accepted Answer

802.3

Answer

802.1

Answer

802.11

Answer

802.15

Question 34

Which of the following characteristics describes TCP?

Accepted Answer

Reliable

Answer

Connectionless

Answer

Unreliable

Answer

Datagram-based

Question 35

Which transport-layer protocol is used for transferring web pages?

Accepted Answer

HTTP

Answer

FTP

Answer

SMTP

Answer

DNS

Question 36

Which IEEE standard defines the physical layer and media access control (MAC) protocols for wireless local area networks (WLANs)?

Accepted Answer

802.11

Answer

802.1

Answer

802.3

Answer

802.15

Question 37

Which of the following is NOT a layer in the TCP/IP protocol suite?

Accepted Answer

Session

Answer

Application

Answer

Transport

Answer

Network

Question 38

Which IEEE standard defines the physical layer and media access control (MAC) protocols for low-power wireless personal area networks (PANs)?

Accepted Answer

802.15

Answer

802.1

Answer

802.3

Answer

802.11

Question 39

Which protocol is connectionless and provides an unreliable, datagram-based service?

Accepted Answer

UDP

Answer

TCP

Answer

IP

Answer

ICMP

Question 40

Which of the following describes a primary function of the IP protocol?

Accepted Answer

Routing packets through the network

Answer

Establishing and maintaining network connections

Answer

Transferring data reliably

Answer

Providing data security

Question 41

Which application-layer protocol is utilized for sending emails?

Accepted Answer

SMTP

Answer

HTTP

Answer

FTP

Answer

DNS

Question 42

Which IEEE standard defines the physical layer and media access control (MAC) protocols for high-speed wireless metropolitan area networks (MANs)?

Accepted Answer

802.16

Answer

802.1

Answer

802.3

Answer

802.11

Question 43

Which IEEE 802.3 standard defines the specifications for Ethernet's physical layer and Medium Access Control (MAC) layer?

Accepted Answer

IEEE 802.3

Answer

IEEE 802.15

Answer

IEEE 802.11

Answer

IEEE 802.16

Question 44

Which significant feature characterizes the IEEE 802.11 standard for wireless LANs?

Accepted Answer

Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)

Answer

Token Passing

Answer

Frequency Hopping Spread Spectrum (FHSS)

Question 45

Which IEEE 802.15 standard is designed for low-power, low-data-rate wireless personal area networks (PANs)?

Accepted Answer

IEEE 802.15.4

Answer

IEEE 802.15.2

Answer

IEEE 802.15.1

Answer

IEEE 802.15.3

Question 46

Which transport layer protocol ensures connection-oriented, reliable data transmission?

Accepted Answer

TCP

Answer

UDP

Answer

HTTP

Answer

IP

Question 47

Which network layer protocol is responsible for addressing and routing packets across networks?

Accepted Answer

IP

Answer

UDP

Answer

TCP

Question 48

Which application layer protocol is used to transfer web pages?

Accepted Answer

HTTP

Answer

Telnet

Answer

FTP

Answer

SMTP

Question 49

Which of the following is NOT a characteristic of UDP?

Accepted Answer

Connection-oriented

Answer

Datagram-based

Answer

Low overhead

Answer

Unreliable

Question 50

Which protocol facilitates the transfer of files across a network?

Accepted Answer

FTP

Answer

SMTP

Answer

DNS

Answer

HTTP

Question 51

Which protocol is employed for sending emails?

Accepted Answer

SMTP

Answer

FTP

Answer

HTTP