Hssc Computer Health Department Exam 2016 (Shift-I)

21. Fire walls can not provide

(1) Protection against viruses originated from Infected USB flash drives.
(2) Protections against Unauthenticated interactive logins.
(3) Protection against network borne attacks
(4) None of the options

Correct Answer: (1) Protection against viruses originated from Infected USB flash drives.

Solution:Firewall is a protection against virsus originated from infected USB flash drives.

22. What does the term 'DMZ' in computer network stand for-

(1) Data base Manage zone
(2) Demilitarized zone
(3) Data Militarized zone
(4) Database Migrate zone.

Correct Answer: (2) Demilitarized zone

Solution:DMZ = Dimilitarized Zone.

23. Examples of system software Includes.

(1) Operating systems
(2) Utility programs
(3) Compilers
(4) All of the options

Correct Answer: (3) Compilers

Solution:23. System of software has two

parts:-

1. Operating system -Windows, Unix, LINEX

2. Language translator-Compiler, Assembler Interpreter.

24. Which of the following user interface you need to open to uninstall a program from your windows 8 system.

(1) Internet Explorer
(2) Control Panel
(3) Window Explorer
(4) Recycle Bin

Correct Answer: (2) Control Panel

Solution:In window 8 system you need to open a control Panel user Interface to Uninstall a program.

25. An attribute or a combination of attributes in one table whose values must either match the primary key in an-other table or be null is called______

(1) Secondary key
(2) Super key
(3) Candidate key
(4) Foreign key

Correct Answer: (4) Foreign key

Solution:Foreign Key.

26. Identify the odd one

(1) Moniter
(2) Printer
(3) Speaker
(4) Keyboard

Correct Answer: (4) Keyboard

Solution:Monitor, Printer, Speaker, are output device and keyуboard is input device.

27. A USB protocol is a______ channel

(1) Simplex
(2) half duplex
(3) Full duplex
(4) Both simplex & half duplex

Correct Answer: (3) Full duplex

Solution:A USB protocol is a full duplex channel (USA-universal serial bus)

28. The distance between the affects the size of the projected contents on an LCD proJector.

(1) Projector & wall
(2) Projector & Screen
(3) Projector & audience
(4) None of the options

Correct Answer: (2) Projector & Screen

Solution:The distance between projector & screen affects the size of the protected content on a LCD projector.

29. The security provided by inter-net protocol security (IPsec) work at.

(1) Transport layer
(2) Network layer
(3) Application layer
(4) Session layer

Correct Answer: (4) Session layer

Solution:Session layer is fifth layer of OSI model. This layer makes session establish between sender & receiver.

30. Wireless protected Access 2 (WPA2) security authentication

(1) Ethernet
(2) Bluetooth
(3) Wifi
(4) All of the options

Correct Answer: (3) Wifi

Solution:Wireless protected Access (WPAZ) security authentication is used in wifi.