1.What is the loss of signal’s energy due to resistance of the medium known as?
[A] Distortion
[B] Attenuation
[C] Noise
[D] None of the above
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2.What do we call the process of transferring a mobile station from one base station to another?
[A] Looping
[B] Hand off
[C] Forwarding
[D] Channeling
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Explanation: Hand off is the process of transferring an active call or data session from one cell in a cellular network to another or from one channel in a cell to another. ©navclasses
3.What is the address given to each computer on the Internet known as?
[A] Hardware number
[B] Device address
[C] IP address
[D] NET address
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Explanation: Internet is a global network of computers each computer connected to the Internet must have a unique address. This address is known as an IP address. ©navclasses
4.Which of these is a connection-oriented network protocol?
[A] TCP
[B] IP
[C] UDP
[D] All of the above
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Explanation: TCP stands for Transmission Control Protocol. It is a connection oriented protocol and offers end-to-end packet delivery. TCP acts as a backbone for connections. ©navclasses
5.Which port is used by HTTP?
[A] 443
[B] 80
[C] 22
[D] 79
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Explanation: HTTP stands for Hypertext Transfer Protocol. It uses port 80 to communicate whereas HTTPS used port number 443 for communication. ©navclasses
6.Which of these protocols is used to querying and modifying directory services running over a network?
[A] NTP
[B] LDAP
[C] SNMP
[D] None of the above
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Explanation: Lightweight Directory Access Protocol, or LDAP is a networking protocol for querying and modifying directory services running over the network. ©navclasses
7.Which of these network protocol is used to synchronize the time of a server to another server?
[A] IGMP
[B] ARP
[C] NTP
[D] SSH
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Explanation: The Network Time Protocol is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. ©navclasses
8.Which of the following is an e-commerce website?
[A] Amazon.com
[B] Flipkart.com
[C] Alibaba.com
[D] All of the above
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Explanation: An e-commerce site is a site offering goods and services for online sale and enabling online transactions for such sales. Examples are Amazon.com, Flipkart.com and Alibaba.com. ©navclasses
9.In which year Google search engine was launched?
[A] 1996
[B] 1998
[C] 1999
[D] 2001
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Explanation: Google search engine was launched in 1998. It is the most visited website in the world. It was founded by Larry Page and Sergey Brin. ©navclasses
10.Which country Xiaomi mobile belongs to?
[A] China
[B] USA
[C] UK
[D] South Korea
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Explanation: Xiaomi Corporation is a Chinese electronics company having its headquarters in Beijing. Xiaomi makes smartphones, mobile apps, laptops, and related consumer electronics. ©navclasses