This set of Wireless & Mobile Communications Multiple Choice Questions & Answers (MCQs) focuses on “TCP over Wireless”.
1. A packet in Transmission Control Protocol (TCP) is called a ______
a) Transmittable slots
d) Source Slots
Explanation: Applications working at the Application Layer transfers a contiguous stream of bytes to the bottom layers. It is the duty of TCP to pack this byte stream to packets, known as TCP segments, which are passed to the IP layer for transmission to the destination device.
2. Cable TV and DSL are examples of ________
a) Interconnection of network
Explanation: A MAN often acts as a high speed network to allow sharing of regional resources. It typically covers an area of between 5 and 50 km diameter. Examples of MAN are telephone company network that provides a high speed DSL to customers and cable TV network.
3. Station on a wireless ALOHA network is maximum of ________
a) 400 Km
b) 500 Km
c) 600 Km
d) 700 Km
Explanation: The stations on a wireless ALOHA networks are a maximum of 600 km apart. It was designed for a radio (wireless) LAN, but it can be used on any shared medium. It is obvious that there are potential collisions in this arrangement. The medium is shared between the stations.
4. IEEE 802.11 defines basic service set as building block of a wireless _____
b) WAN protocol
Explanation: The IEEE 802.11 topology consists of components interacting to provide a wireless LAN. It enables station mobility transparent to higher protocol layers, such as the LLC.
5. In wireless LAN, there are many hidden stations so that _______ cannot be detected.
Explanation: In wireless networking, the hidden node problem or hidden terminal problem occurs when a node is visible from a wireless access point (AP), but not from other nodes communicating with said AP. This leads to difficulties in media access control and collisions could not be detected.
6. A set that makes stationary or mobile wireless station and also have optional central base station is known as _______
a) Basic service set
b) Extended service set
c) Network point set
d) Access point
Explanation: A set that makes stationary or mobile wireless station and also have optional central base station is known as basic service set. BSS is made of stationary or mobile wireless stations and an optional central base station, known as the access point (AP).
7. Wireless communication started in _____
Explanation: In England, Guglielmo Marconi began his wireless experiments in 1895. On 2 June 1896, he filed his provisional specification of a patent for wireless telegraphy. He demonstrated the system to the British Post Office in July.
8. Wireless transmission is divided into ______
a) 3 broad groups
b) 6 broad groups
c) 9 broad groups
d) 8 broad groups
Explanation: We can divide wireless transmission into three broad groups: radio waves, microwaves, and infrared waves. Radio waves are used for multicast communications, such as AM and FM radio, television, maritime radio, cordless phones and paging systems. Microwave propagation is line-of-sight.
9. Transmission Control Protocol/Internet Networking Protocol have ________
a) Four Layers
b) Five Layers
c) Six Layers
d) Seven Layers
Explanation: TCP/IP functionality is divided into four layers, each with its own set of agreed-upon protocols: The datalink layer consists of methods and protocols that operate only on a link. The Internet layer connects independent networks to transport the packets. The Transport layer handles communications between. The Application layer standardizes data exchange for applications.
10. Packets of data that is transported by IP is called _______
d) Encapsulate message
Explanation: The format of data that can be recognized by IP is called an IP datagram. It consists of two components, the header and data, which need to be transmitted. The fields in the datagram, except the data, have specific roles to perform in the transmission of data.
11. Parameter that is normally achieved through a trailer added to end of frame is ________
a) Access Control
b) Flow Control
c) Error Control
d) Physical addressing
Explanation: The data link layer adds reliability to the physical layer by adding mechanisms to detect and retransmit damaged or lost frames. It also uses a mechanism to recognize duplicate frames. Error control is normally achieved through a trailer added to the end of the frame.
Sanfoundry Global Education & Learning Series – Wireless & Mobile Communications.
To practice all areas of Wireless & Mobile Communications, here is complete set of 1000+ Multiple Choice Questions and Answers.