Chapter-1 Computer Networking
1. A term that defines the direction of flow of information between devices.
a. interconnectivity
b. intra connectivity
c. transmission mode
d. transmission
✅ c. transmission mode
2. Which of the following isn’t a type of transmission mode?
a. physical
b. simplex
c. full duplex
d. half duplex
✅ a. physical
3. A transmission mode that can transmit data in both the directions but transmits in only one direction at a time.
a. simplex
b. half duplex
c. full duplex
d. semi-duplex
✅ b. half duplex
4. A communication between a computer and a keyboard involves ____________ duplex transmission.
a. simplex
b. half duplex
c. full duplex
d. semi-duplex
✅ a. simplex
5. Telephone networks operate in ______________mode.
a. simplex
b. half duplex
c. full duplex
d. semi-duplex
✅ c. full duplex
6. A technique of transmitting data or images or videos (information) using a continuous signal.
a. direct
b. network
c. analog
d. multiple
✅ c. analog
7. A walkie-talkie operates in ____________
a. simplex
b. half duplex
c. full duplex
d. semi-duplex
✅ b. half duplex
8. Physical or logical arrangement of network is __________
a. Topology
b. Routing
c. Networking
d. Control
✅ a. Topology
9. Which network topology requires a central controller or hub?
a. Ring
b. Mesh
c. Star
d. Bus
✅ c. Star
10. _______ topology requires a multipoint connection.
a. Ring
b. Mesh
c. Star
d. Bus
✅ d. Bus
11. Data communication system spanning states, countries, or the whole world is ________
a. LAN
b. WAN
c. MAN
d. PAN
✅ b. WAN
12. Data communication system within a building or campus is________
a. LAN
b. WAN
c. MAN
d. PAN
✅ a. LAN
13. ________ topology is a combination of two or more topologies.
a. Star
b. Hybrid
c. Bus
d. Ring
✅ b. Hybrid
14. Which of the following uses Bluetooth as a Wireless technology?
a. LAN
b. WAN
c. MAN
d. PAN
✅ d. PAN
15. __________ uses all its energy in gathering data signals at one particular direction.
a. Bidirectional Antenna
b. Unidirectional Antenna
c. Directional Antenna
d. Omnidirectional Antenna
✅ c. Directional Antenna
16. Bluetooth communicates data using low-power radio waves that are within the frequencies ______ and _______
a. 2.304 MHz, 2.382MHz
b. 2.402 MHz, 2.480 MHz
c. 2.304 GHz, 2.382GHz
d. 2.402 GHz, 2.480 GHz
✅ d. 2.402 GHz, 2.480 GHz
17. Signals with a frequency between 2 MHz and 30 MHz use ______ propagation
a. Ground
b. Sky
c. Line-of-sight
d. NOTA
✅ b. Sky
18. ________ cable consists of two insulated copper wires twisted together.
a. Coaxial
b. Fiber-optic
c. Twisted-pair
d. NOTA
✅ c. Twisted-pair
19. ______ cables carry data signals in the form of light.
a. Coaxial
b. Fiber-optic
c. Twisted-pair
d. NOTA
✅ b. Fiber-optic
20. In a fiber-optic cable, the signal is propagated along the inner core by _______.
a. reflection
b. refraction
c. modulation
d. NOTA
✅ a. reflection
21. _________ media transport electromagnetic waves without the use of a physical conductor.
a. Guided
b. Unguided
c. Both a and b
d. NOTA
✅ b. Unguided
22. Radio waves are _________.
a. omnidirectional
b. unidirectional
c. bidirectional
d. NOTA
✅ a. omnidirectional
23. Microwaves are _________.
a. omnidirectional
b. unidirectional
c. bidirectional
d. NOTA
✅ c. bidirectional
24. _______ are used for cellular phone, satellite, and wireless LAN communications.
a. Radio waves
b. Microwaves
c. Infrared waves
d. NOTA
✅ b. Microwaves
25. ________ are used for short-range communications such as those between a PC and a peripheral device.
a. Radio waves
b. Microwaves
c. Infrared waves
d. NOTA
✅ c. Infrared waves
26. Transmission media are usually categorized as _______.
a. fixed or unfixed
b. guided or unguided
c. determinate or indeterminate
d. metallic or nonmetallic
✅ b. guided or unguided
27. ______ cable consists of an inner copper core and a second conducting outer sheath.
a. Twisted-pair
b. Fiber-optic
c. Coaxial
d. Shielded twisted-pair
✅ c. Coaxial
28. Which of the following primarily uses guided media?
a. cellular telephone system
b. local telephone system
c. satellite communications
d. radio broadcasting
✅ b. local telephone system
29. Which of the following is not a guided medium?
a. twisted-pair cable
b. coaxial cable
c. fiber-optic cable
d. atmosphere
✅ d. atmosphere
30. What is the major factor that makes coaxial cable less susceptible to noise than twisted-pair cable?
a. inner conductor
b. diameter of cable
c. outer conductor
d. insulating material
✅ c. outer conductor
31. The inner core of an optical fiber is _______ in composition.
a. glass or plastic
b. copper
c. bimetallic
d. liquid
✅ a. glass or plastic
32. Which one of the following network devices stores the IP addresses?
a. Router
b. Switch
c. Both a and b
d. Nota
✅ a. Router
33. Which one of the following network devices has only two ports?
a. Router
b. Bridge
c. Both a and b
d. Nota
✅ b. Bridge
34. Which one of the following network devices is used to connect different networks?
a. Hub
b. Switch
c. Router
d. Nota
✅ c. Router
35. Which one of the following network devices connects the devices in a twisted pair?
a. Hub
b. Switch
c. Bridge
d. Both a and b
✅ d. Both a and b
36. Which one of the following network devices stores the MAC addresses?
a. Router
b. Switch
c. Bridge
d. NOTA
✅ b. Switch
37. Which one of the following network devices uses a routing table for sending the data?
a. Router
b. Switch
c. Bridge
d. NOTA
✅ a. Router
38. Which one of the following network devices divides the network to reduce the traffic?
a. Hub
b. Switch
c. Bridge
d. Modem
✅ c. Bridge
39. Which one of the following network devices doesn’t store any IP address or MAC address?
a. Router
b. Switch
c. Hub
d. Modem
✅ c. Hub
40. Which one of the following network devices is an intelligent device?
a. Hub
b. Switch
c. Router
d. Both b and c
✅ d. Both b and c
Chapter-Internet and Its Application
1. What is the Internet?
a. A programming language
b. A global network of interconnected computers
c. A type of operating system
d. A type of software
✅ b. A global network of interconnected computers
2. Which protocol is used to transfer web pages over the Internet?
a. FTP
b. TCP
c. HTTP
d. SMTP
✅ c. HTTP
3. What is the full form of ISP?
a. Internet Secured Protocol
b. International Server Provider
c. Internet Service Provider
d. Internal Server Page
✅ c. Internet Service Provider
4. Which device is required to connect a computer to the Internet?
a. Printer
b. Router or Modem
c. Scanner
d. Projector
✅ b. Router or Modem
5. What does URL stand for?
a. Uniform Registration Language
b. Universal Reference Link
c. Unique Retrieval Link
d. Uniform Resource Locator
✅ d. Uniform Resource Locator
6. Which of the following is an example of a web browser?
a. Google
b. Bing
c. Chrome
d. Windows
✅ c. Chrome
7. What is the purpose of a search engine?
a. To display advertisements
b. To find and retrieve information on the Internet
c. To store user files
d. To host websites
✅ b. To find and retrieve information on the Internet
8. Which of the following is not a valid Internet protocol?
a. HTTP
b. FTP
c. SMTP
d. JPG
✅ d. JPG
9. What does the term “bandwidth” refer to in Internet connectivity?
a. The amount of data that can be transmitted in a fixed amount of time
b. The distance between two computers
c. The number of devices on a network
d. The weight of a network cable
✅ a. The amount of data that can be transmitted in a fixed amount of time
10. What is the Internet backbone?
a. The physical layout of LAN networks
b. A set of high-capacity data routes that form the main pathways of the internet
c. A software used to manage internet traffic
d. A wireless signal used for connecting devices
✅
11. Which of the following technologies is most commonly used in the Internet backbone?
a. Dial-up
b. Fiber-optic cables
c. Satellite internet
d. Coaxial cable
✅ b. Fiber-optic cables
12. What is a key characteristic of backbone networks?
a. Low bandwidth
b. Limited to residential use
c. High-speed data transmission
d. Wireless-only communication
✅ c. High-speed data transmission
13. Which of the following statements is true about the ownership of the Internet backbone?
a. It is owned and operated by the United Nations
b. It is a public utility managed by local governments
c. It is entirely owned by a single global ISP
d. It is operated by multiple private and government organizations
✅ d. It is operated by multiple private and government organizations
14. What is Internet access?
a. Creating a website
b. Connecting to the World Wide Web to use online services
c. Writing HTML code
d. Installing software from a CD
✅ b. Connecting to the World Wide Web to use online services
15. Which of the following is NOT a common way to access the Internet?
a. DSL
b. Dial-up
c. Bluetooth
d. Fiber-optic
✅ c. Bluetooth
16. Which device is typically used to provide Internet access in a home network?
a. Printer
b. Modem or Router
c. Projector
d. CPU
✅ b. Modem or Router
17. Which one of these is a wireless method of Internet access?
a. Wi-Fi
b. Ethernet
c. DSL
d. Fiber-optic
✅ a. Wi-Fi
18. What does the term "broadband" mean in the context of Internet access?
a. A very narrow Internet connection
b. A slow and outdated connection
c. High-speed Internet access
d. Temporary Internet connection
✅ c. High-speed Internet access
19. Which Internet access technology uses telephone lines but provides higher speed than dial-up?
a. Wi-Fi
b. DSL
c. Cable
d. Bluetooth
✅ b. DSL
20. What is the main disadvantage of dial-up Internet access?
a. It is wireless
b. It is very fast
c. It uses optical fiber
d. It is slow and cannot be used while making phone calls
✅ d. It is slow and cannot be used while making phone calls
21. Which of the following is the fastest type of Internet access?
a. Dial-up
b. DSL
c. Fiber-optic
d. Satellite
✅ c. Fiber-optic
22. Which of the following provides global wireless Internet access, even in remote areas?
a. Dial-up
b. DSL
c. Fiber-optic
d. Satellite internet
✅ d. Satellite internet
23. Which of the following technologies is most commonly used for mobile Internet access?
a. DSL
b. Bluetooth
c. 4G/5G
d. LAN
✅ c. 4G/5G
24. Which of the following affects Internet access speed the most?
a. Keyboard type
b. Internet plan bandwidth
c. Operating system
d. Screen resolution
✅ b. Internet plan bandwidth
25. Which one of the following is NOT a factor in selecting an Internet Service Provider (ISP)?
a. Speed
b. Data limit
c. Monthly cost
d. Keyboard brand
✅ d. Keyboard brand
26. What is the main purpose of the Internet Protocol (IP)?
a. To send emails
b. To secure websites
c. To deliver data packets from source to destination across networks
d. To design web pages
✅ c. To deliver data packets from source to destination across networks
27. What does an IP address do?
a. Hides the identity of a user
b. Acts as a unique identifier for a device on a network
c. Compresses web data
d. Blocks unwanted traffic
✅ b. Acts as a unique identifier for a device on a network
28. What is the typical format of an IPv4 address?
a. 4 groups of 2 digits
b. Hexadecimal numbers only
c. 4 numbers separated by dots (e.g., 192.168.0.1)
d. Alphanumeric characters separated by colons
✅ c. 4 numbers separated by dots (e.g., 192.168.0.1
29. Which version of IP uses 128-bit addresses?
a. IPv1
b. IPv4
c. IPv6
d. IPX
✅ c. IPv6
30. What does TCP/IP stand for?
a. Transmission Control Protocol / Internet Protocol
b. Technical Computer Protocol / Internal Platform
c. Transport Code Protocol / Internet Provider
d. Terminal Control Program / Internal Processing
✅ a. Transmission Control Protocol / Internet Protocol
31. Which of the following helps in resolving domain names to IP addresses?
a. HTTP
b. FTP
c. DNS
d. SMTP
✅ c. DNS
32. Which class of IPv4 address is reserved for multicast?
a. Class A
b. Class B
c. Class D
d. Class E
✅ c. Class D
33. Which protocol is used to transfer files between computers over the Internet?
a. HTTP
b. TELNET
c. FTP
d. DNS
✅ c. FTP
34. Which protocol is used to access websites and web pages?
a. FTP
b. HTTP
c. WAIS
d. GOPHER
✅ b. HTTP
35. What is the main use of TELNET?
a. Transferring emails
b. Accessing remote computers
c. Downloading files
d. Searching web pages
✅ b. Accessing remote computers
36. What is the function of WAIS (Wide Area Information Servers)?
a. File transfer
b. Email exchange
c. Searching and retrieving documents from databases
d. Video conferencing
✅ c. Searching and retrieving documents from databases
37. GOPHER was an early protocol used for:
a. Playing games online
b. Browsing and retrieving documents in a menu-based format
c. File compression
d. Voice chatting
✅ b. Browsing and retrieving documents in a menu-based format
38. How many bits are there in an IPv4 address?
a. 16
b. 32
c. 64
d. 128
✅ b. 32
39. The binary equivalent of the IP address 192.0.2.1 is:
a. 11000000.00000000.00000010.00000001
b. 10000000.11111111.10000000.00000000
c. 00000000.00000000.00000000.00000000
d. 11111111.11111111.11111111.11111111
✅ a. 11000000.00000000.00000010.00000001
40. What is the correct format of an IPv4 address?
a. 255.255.255.255
b. 255:255:255:255
c. 255-255-255-255
d. 255/255/255/255
✅ a. 255.255.255.255
41. What type of IP address is 127.0.0.1?
a. Broadcast address
b. Loopback address
c. Multicast address
d. Private address
✅ b. Loopback address
42. What is a domain name?
a. A programming syntax
b. A readable text name that maps to an IP address
c. A virus scanner
d. A MAC address
✅ b. A readable text name that maps to an IP address
43. Which part of the domain name www.google.com is the top-level domain (TLD)?
a. www
b. google
c. .com
d. .www
✅ c. .com
44. What is the domain name in the URL https://www.school.edu?
a. https
b. www
c. school.edu
d. edu
✅ c. school.edu
45. Which of the following is not a valid top-level domain (TLD)?
a. .gov
b. .org
c. .xyz
d. .doc
✅ d. .doc
46. What is a MAC address?
a. Memory Allocation Code
b. A unique hardware identifier assigned to a network interface card
c. Media Application Control
d. A kind of IP address
✅ b. A unique hardware identifier assigned to a network interface card
47. MAC addresses are usually written in:
a. Decimal format
b. Binary format
c. Hexadecimal format
d. Octal format
✅ c. Hexadecimal format
48. How many bits are there in a MAC address?
a. 32 bits
b. 48 bits
c. 64 bits
d. 16 bits
✅ b. 48 bits
49. A sample MAC address looks like:
a. 192.168.1.1
b. 00:1A:2B:3C:4D:5E
c. www.example.com
d. 127.0.0.1
✅ b. 00:1A:2B:3C:4D:5E
50. What does the "@" symbol in an email address separate?
a. The username and the password
b. The username and the mail server domain
c. Two users
d. The IP and MAC address
✅ b. The username and the mail server domain
51. Which protocol is used to send emails?
a. HTTP
b. FTP
c. SMTP
d. POP3
✅ c. SMTP
52. What is the full form of CC in email terminology?
a. Closed Copy
b. Carbon Copy
c. Copy Confirmed
d. Communication Channel
✅ b. Carbon Copy
53. What is online chatting?
a. Watching movies
b. Sending files over the network
c. Real-time text-based communication between users
d. Playing games online
✅ c. Real-time text-based communication between users
54. IRC is primarily used for:
a. Voice calling
b. Email services
c. Sending documents
d. Real-time group chatting over the internet
✅ d. Real-time group chatting over the internet
55. One key feature of chatting over the internet is:
a. Scheduled delivery
b. Delayed messages
c. Instant message exchange
d. Requires no internet
✅ c. Instant message exchange
56. Video conferencing requires:
a. Only a microphone
b. Only a printer
c. Internet, webcam, and microphone
d. DNS server
✅ c. Internet, webcam, and microphone
57. Which of the following is NOT a video conferencing tool?
a. Zoom
b. Skype
c. Google Meet
d. MS Word
✅ d. MS Word
58. SMS is mainly used for:
a. Voice calls
b. Sending short text messages through mobile networks
c. Video sharing
d. Browsing websites
✅ b. Sending short text messages through mobile networks
59. Which of the following limits the length of a standard SMS message?
a. 260 characters
b. 100 characters
c. 160 characters
d. 200 characters
✅
60. What is voicemail?
a. A system that sends text messages
b. A tool for live video calls
c. An audio player app
d. A system for leaving recorded voice messages when a person is unavailable
✅ d. A system for leaving recorded voice messages when a person is unavailable
61. What does the “https” in a URL indicate?
a. HyperText Transfer Protocol Simple
b. HyperText Transfer Private Server
c. HyperText Transfer Protocol Secure
d. Hyper Transfer Protocol Service
✅ c. HyperText Transfer Protocol Secure
62. In a URL, the “www” stands for:
a. World Wide Web
b. Web Wide World
c. Wireless Web World
d. World Web Wide
✅ a. World Wide Web
63. Which part of a URL specifies the domain name?
a. The last part after the final slash
b. After “http://” and before the next slash (/)
c. The file name
d. The protocol
✅ b. After “http://” and before the next slash (/)
64. Which protocol is used to receive emails?
a. SMTP
b. POP3
c. FTP
d. HTTP
✅ b. POP3
65. What is the purpose of BCC (Blind Carbon Copy) in emails?
a. To create an email draft
b. To block spam emails
c. To delete emails automatically
d. To send a copy without recipients seeing the addresses
✅ d. To send a copy without recipients seeing the addresses
66. Which of these is a popular instant messaging service?
a. FTP
b. WhatsApp
c. SMTP
d. DNS
✅ b. WhatsApp
67. Video conferencing helps in:
a. Sending SMS
b. Emailing large files
c. Face-to-face communication over the Internet
d. Streaming videos only
✅
68. Which device is essential for video conferencing?
a. Scanner
b. Webcam
c. Printer
d. Microcontroller
✅ b. Webcam
69. Which of these is NOT a feature of video conferencing?
a. Screen sharing
b. Live chat
c. File transfer
d. Printing documents
✅ d. Printing documents
70. What is the difference between SMS and MMS?
a. SMS supports multimedia, MMS does not
b. MMS supports multimedia messages, SMS supports only text
c. SMS is faster than MMS
d. MMS is limited to 160 characters
✅ b. MMS supports multimedia messages, SMS supports only text
80. Voicemail is commonly used when:
a. The recipient is unavailable to answer a call
b. Sending emails
c. Making video calls
d. Streaming music
✅ a. The recipient is unavailable to answer a call
81. What is mobile communication?
a. Communication via fixed-line telephones
b. Wireless communication between mobile devices
c. Communication using postal mail
d. Communication using satellite TV
✅ b. Wireless communication between mobile devices
82. What does GSM stand for in mobile communication?
a. Global System for Mobile Communications
b. General Service for Mobile
c. Global Satellite Mobile
d. General System for Messaging
✅ a. Global System for Mobile Communications
83. Which generation of mobile networks introduced high-speed data and internet access?
a. 1G
b. 2G
c. 3G
d. 4G
✅ c. 3G
84. What is the full form of SIM in mobile communication?
a. Subscriber Internet Manager
b. Signal Integration Module
c. System Identification Manager
d. Subscriber Identity Module
✅ d. Subscriber Identity Module
85. Which of the following is a short-range wireless communication technology used in mobile phones?
a. GSM
b. LTE
c. Bluetooth
d. 4G
✅ c. Bluetooth
86. Which generation of mobile communication offers the fastest internet speeds?
a. 2G
b. 3G
c. 4G
d. 5G
✅ d. 5G
87. Which mobile communication technology is primarily used for voice calls only?
a. 1G
b. 3G
c. 4G
d. LTE
✅ a. 1G
88. What does LTE stand for?
a. Long Term Evolution
b. Long Time Extension
c. Low Transfer Encoding
d. Local Telecommunication Exchange
✅ a. Long Term Evolution
89. What is roaming in mobile communication?
a. Using your mobile phone to browse the internet
b. Using your mobile network outside your provider’s coverage area
c. Turning off your mobile phone
d. Downloading apps
✅ b. Using your mobile network outside your provider’s coverage area
90. Which mobile generation introduced video calling?
a. 2G
b. 3G
c. 4G
d. 5G
✅ b. 3G
91. What is the purpose of a base station in mobile communication?
a. To provide internet to fixed-line users
b. To provide GPS services
c. To facilitate wireless communication between mobile devices and the network
d. To store user data
✅ c. To facilitate wireless communication between mobile devices and the network
92. What does VoLTE stand for?
a. Video over LTE
b. Voice over Local Telecom Exchange
c. Voice over LTE
d. Virtual Online LTE
✅ c. Voice over LTE
93. What does FDMA stand for?
a. Frequency Data Multiple Access
b. Frequency Division Multiple Access
c. Full Duplex Multiple Access
d. Fast Data Mobile Access
✅ b. Frequency Division Multiple Access
94. In TDMA, the available bandwidth is divided based on:
a. Frequency
b. Code
c. Time
d. Distance
✅ c. Time
95. CDMA allows multiple users to share the same frequency band by using:
a. Unique time slots
b. Unique frequencies
c. Unique codes
d. Unique channels
✅ c. Unique codes
96. EDGE is an enhancement of which mobile technology?
a. CDMA
b. GPRS
c. LTE
d. VoLTE
✅ b. GPRS
97. Which technology divides the frequency band into separate channels for each user?
a. TDMA
b. EDGE
c. CDMA
d. FDMA
✅ d. FDMA
98. What is the main function of VoLTE?
a. Enhancing text message delivery
b. Sending large files
c. Providing high-quality voice calls over 4G
d. Reducing the size of SIM cards
✅ c. Providing high-quality voice calls over 4G
99. Which of the following is a mandatory component of an email?
a. Subject
b. Cc
c. Body
d. Recipient’s Email Address
✅ d. Recipient’s Email Address
100. Which component of an email identifies the sender?
a. To
b. Cc
c. From
d. Bcc
✅ c. From
