Specialist Officer IT Previous Year Questions - 1

1. A special type gateway that can keep external users from accessing resources on the LAN users access the external info is called:
1. Repeater
2. Firewall
3. Encryption
4. Hub
5. None of these
2. What is the name given to the exchange of control signals which is necessary for establishing a connection between a modem and a computer at one end of a line and another modem and computer at the other end?
1. Handshaking
2. Modem options
3. Protocol
4. All of these
5. None of these
3. In SQL, which command is used to changes data in a data table?
1. UPDATE
2. INSERT
3. BROWSE
4. APPEND
5. None of these
4. In SQL, which of the following is not a data definition language command?
1. RENAME
2. REVOKE
3. GRANT
4. UPDATE
5. None of these