This set of Analog Communications Multiple Choice Questions & Answers (MCQs) focuses on “Digital Multiplexing”.
1. If the modulating frequency of a carrier wave varies between 100Hz and 100KHz, find it’s bandwidth?
a) 100 KHz
b) 230.2 KHz
c) 199.8 KHz
d) 123.6 KHz
Explanation: fm= 100KHz – 100Hz = 99.9KHz and Bandwidth = 2fm = 2 x 99.9 = 199.8 KHz.
2. TCP stands for __________
a) Transfer Control Protocol
b) Transmission Control Protocol
c) Transfer Control Process
d) Transmission Control Process
Explanation: TCP stands for Transmission Control Protocol. It is one of the main protocols of Internet. The entire suite is commonly referred as TCP/IP.
3. TCP/IP consists of ________ layers.
Explanation: TCP stands for Transmission Control Protocol. It is one of the main protocols of Internet. It is originated in the initial network implementation in which it complemented the Internet Protocol. The entire suite is commonly referred as TCP/IP. It consists 5 layers.
4. What do you understand by IP?
a) virtual circuit
b) non-robust protocol
c) connection oriented protocol
d) connection-less protocol
Explanation: IP stands for Internet Protocol or it can be seen as a connection-less protocol.
5. What is the full form of UDP?
a) User Datagram Protocol
b) User Data Protocol
c) Unique Datagram Protocol
d) Unique Data Protocol
Explanation: UDP stands for User Datagram Protocol. It is alternative for Transmission Control Protocol.
6. What is the lifetime of a packet in an IP network?
a) depends on time elapsed since transmission
b) depends on number of “hops” between nodes
c) approximately 300 milliseconds
d) approximately 500 milliseconds
Explanation: Information is divided into small chunks, called packets. The lifetime of a packet in an IP network depends on number of “hops” between nodes.
7. The standard Internet address or URL is a 16-bit binary number?
Explanation: The standard Internet address or URL is a 32-bit binary number. URL is a web resource that specifies its location on a computer network and a mechanism for retrieving it.
8. DNS stands for __________
a) Domain Name Server
b) Domain Name System
c) Domain Name Service
d) Domain Name Security
Explanation: DNS stands for Domain Name Server. Domain Name Server is a host name to IP address translation service. It is a distributed database implemented in a hierarchy of name servers.
9. Which statement is true about a DNS?
a) has become obsolete on the Internet
b) translates words to numbers
c) stores all domain addresses
d) describe the Internet address-naming procedure
Explanation: DNS stands for Domain Name Server. Domain Name Server is a host name to IP address translation service. It is a distributed database implemented in a hierarchy of name servers.DNS can translate words to numbers.
10. An intranet connected to the internet is often protected by __________
a) a DNS
b) a “brick wall”
c) a “fire wall”
d) the use of “spoofing ” protocols
Explanation: Intranet uses internet technologies, but is insulated from the global internet. An intranet connected to the internet is often protected by DNS.
Sanfoundry Global Education & Learning Series – Analog Communications.
To practice all areas of Analog Communications, here is complete set of 1000+ Multiple Choice Questions and Answers.