1. The octal number system consists of the following symbols :
 (A) 0 – 7 
 (B) 0 – 9 
 (C) 0 – 9, A – F
 (D) None of the above

2. The binary equivalent of (–19)10 in signed magnitude system is
 (A) 11101100
 (B) 11101101
 (C) 10010011
 (D) None of these

3. DNS in internet technology stands for
 (A) Dynamic Name System
 (B) Domain Name System
 (C) Distributed Name System
 (D) None of these 

4.HTML stands for
 (A) Hyper Text Markup Language
 (B) Hyper Text Manipulation Language
 (C) Hyper Text Managing Links
 (D) Hyper Text Manipulating Links

5. Which of the following is type of LAN ?
 (A) Ethernet
 (B) Token Ring
 (D) All of the above

6. Which of the following statements is true ?
 (A) Smart cards do not require an operating system.
 (B) Smart cards and PCs use some operating system.
 (C) COS is smart card operating system. 
(D) The communication between reader and card is in full duplex mode.