CN : computer networks part 1

51. Supernetting is also known as:

Options:

(A) Subnet masking

(B) CIDR aggregation

(C) Fragmentation

(D) Broadcasting

✅ Correct Answer: (B) CIDR aggregation

52. Private IP addresses are defined in:

Options:

(A) RFC 1918

(B) RFC 791

(C) RFC 2460

(D) RFC 1122

✅ Correct Answer: (A) RFC 1918

53. IPv6 address length is:

Options:

(A) 64 bits

(B) 96 bits

(C) 128 bits

(D) 256 bits

✅ Correct Answer: (C) 128 bits

54. Class D addresses are used for:

Options:

(A) Multicast

(B) Broadcast

(C) Unicast

(D) Experimental

✅ Correct Answer: (A) Multicast

55. CIA triad stands for:

Options:

(A) Control, Integrity, Authentication

(B) Confidentiality, Integrity, Availability

(C) Communication, Internet, Access

(D) Cryptography, Integrity, Access

✅ Correct Answer: (B) Confidentiality, Integrity, Availability

56. VPNs primarily provide:

Options:

(A) Speed

(B) Secure tunneling

(C) Routing

(D) Addressing

✅ Correct Answer: (B) Secure tunneling

57. IDS differs from IPS because IDS:

Options:

(A) Blocks traffic

(B) Detects only

(C) Encrypts packets

(D) Routes packets

✅ Correct Answer: (B) Detects only

58. HTTPS uses which security protocol:

Options:

(A) SSL/TLS

(B) IPsec

(C) SSH

(D) S/MIME

✅ Correct Answer: (A) SSL/TLS

59. Firewall rules are based on:

Options:

(A) Physical location

(B) Traffic filtering policies

(C) Application code

(D) Hardware design

✅ Correct Answer: (B) Traffic filtering policies

60. SSH is used for:

Options:

(A) File transfer

(B) Secure remote login

(C) Video streaming

(D) Routing

✅ Correct Answer: (B) Secure remote login

61. Which is an example of network application?

Options:

(A) Compiler

(B) Email

(C) BIOS

(D) Cache memory

✅ Correct Answer: (B) Email

62. Encryption ensures:

Options:

(A) Availability

(B) Confidentiality

(C) Routing

(D) Authentication only

✅ Correct Answer: (B) Confidentiality

63. Network security is critical mainly for:

Options:

(A) Home use

(B) Gaming only

(C) Enterprise and government systems

(D) Entertainment systems

✅ Correct Answer: (C) Enterprise and government systems

64. MPLS improves:

Options:

(A) Packet loss

(B) QoS and traffic engineering

(C) Encryption

(D) Addressing

✅ Correct Answer: (B) QoS and traffic engineering

65. Optical fiber supports:

Options:

(A) Low bandwidth

(B) Electrical signaling

(C) High-speed data transmission

(D) Analog signals only

✅ Correct Answer: (C) High-speed data transmission

66. 5G networks mainly enhance:

Options:

(A) Latency and speed

(B) Addressing

(C) Encryption

(D) Switching

✅ Correct Answer: (A) Latency and speed

67. SDN separates:

Options:

(A) Routers and software

(B) Control and data plane

(C) LAN and WAN

(D) IP and MAC

✅ Correct Answer: (B) Control and data plane

68. NFV replaces:

Options:

(A) Routers

(B) Switches

(C) Dedicated hardware appliances

(D) Cables

✅ Correct Answer: (C) Dedicated hardware appliances

69. IoT applications require:

Options:

(A) High power

(B) Low latency and scalability

(C) Large screens

(D) Wired connections only

✅ Correct Answer: (B) Low latency and scalability

70. Token Ring heavily relies on:

Options:

(A) Token Ring

(B) High-speed networks

(C) Dial-up

(D) Analog links

✅ Correct Answer: (A) Token Ring

71. Video conferencing is sensitive to:

Options:

(A) Address space

(B) Packet loss

(C) MAC addressing

(D) Fragmentation

✅ Correct Answer: (B) Packet loss

72. Digital transformation is driven mainly by:

Options:

(A) Manual systems

(B) High-speed networking technologies

(C) Paper-based processes

(D) Standalone computers

✅ Correct Answer: (B) High-speed networking technologies

Anic_an_engineer

Author & Editor

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