Section # 5 Data Communication and Networking

81. What is the most common type of network cable?

A) Fiber optic
B) Coaxial
C) Twisted pair
D) HDMI

Answer: C) Twisted pair

82. Which protocol is responsible for assigning IP addresses to devices on a network?

A) DHCP
B) DNS
C) HTTP
D) FTP

Answer: A) DHCP

83. What is the term for the process of converting digital data into analog signals for transmission over phone lines?

A) Modulation
B) Demodulation
C) Encryption
D) Decryption

Answer: A) Modulation

84. Which network topology is characterized by a central device connected to multiple nodes?

A) Bus
B) Star
C) Ring
D) Mesh

Answer: B) Star

85. What is the most common type of network switch?

A) Managed switch
B) Unmanaged switch
C) Hybrid switch
D) Virtual switch

Answer: B) Unmanaged switch

86. Which protocol is used for transmitting data over the internet?

A) TCP/IP
B) HTTP
C) FTP
D) SMTP

Answer: A) TCP/IP

87. What is the term for the process of verifying the identity of a user or device on a network?

A) Authentication
B) Authorization
C) Encryption
D) Decryption

Answer: A) Authentication

88. Which network device is used to connect multiple networks together?

A) Router
B) Switch
C) Hub
D) Bridge

Answer: A) Router

89. What is the most common type of network cable connector?

A) RJ-45
B) RJ-11
C) DB-9
D) USB

Answer: A) RJ-45

90. Which protocol is used for transmitting email over the internet?

A) SMTP
B) POP3
C) IMAP
D) HTTP

Answer: A) SMTP

91. What is the term for the amount of data that can be transmitted over a network in a given amount of time?

A) Bandwidth
B) Latency
C) Throughput
D) Packet loss

Answer: C) Throughput

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

A) DNS
B) DHCP
C) HTTP
D) FTP

Answer: A) DNS

93. What is the term for a network device that operates at the data link layer of the OSI model?

A) Switch
B) Router
C) Bridge
D) Hub

Answer: A) Switch

94. Which type of network cable is used for high-speed connections over long distances?

A) Fiber optic
B) Coaxial
C) Twisted pair
D) HDMI

Answer: A) Fiber optic

95. What is the term for the process of encrypting data to secure it for transmission over a network?

A) Authentication
B) Authorization
C) Encryption
D) Decryption

Answer: C) Encryption

96. Which network protocol is used for transmitting data over the internet in a connectionless manner?

A) TCP
B) UDP
C) HTTP
D) FTP

Answer: B) UDP

97. What is the term for a network device that connects multiple networks together and routes traffic between them?

A) Switch
B) Router
C) Bridge
D) Hub

Answer: B) Router

98. Which network topology is characterized by a decentralized network with no central hub or switch?

A) Bus
B) Star
C) Ring
D) Mesh

Answer: D) Mesh

99. What is the term for the amount of time it takes for a packet of data to travel from the sender to the receiver over a network?

A) Latency
B) Throughput
C) Bandwidth
D) Packet loss

Answer: A) Latency

100. Which network protocol is used for transmitting email over the internet in a secure manner?

A) SMTP
B) POP3
C) IMAP
D) SSL/TLS

Answer: D) SSL/TLS

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