Computer Networks Practice Test 4

1. SSH can be used in only _____________

windows

unix-like operating systems

both unix-like and windows systems

none of the mentioned

2. Which layer of the OSI reference model does PPTP work at?

Layer 4

Layer 3

Layer 1

Layer 2

3. How do Storage administrators ensure secure access to storage devices?

By keeping devices shutdown when not in use

By using Zoning

By putting a physical lock on the storage device

By keeping devices when used

4. Which standard TCP port is assigned for contacting SSH servers?

port 23

port 24

port 21

port 22

5. Which amongst the following statements is correct for “character at a time” mode?

All text is processed locally, and only confirmed lines are sent to the remote host

Character processing is done on the local system under the control of the remote system

All text is echoed locally, only completed lines are sent to the remote host

Most text typed is immediately sent to the remote host for processing

6. DHCP is used for ________

None of the mentioned

IPv4

IPv6

Both IPv6 and IPv4

7. Which one of the following is not true?

multiple hostnames may correspond to a single IP address

a single hostname may correspond to many IP addresses

a single hostname may correspond to a single IP address

none of the mentioned

8. What protocol is NOT used in the operation of a VPN?

YMUM

L2TP

PPTP

IPsec

9. Full duplex mode increases the capacity of each domain by ________

40 to 50 mbps

10 to 20 mbps

30 to 40 mbps

20 to 30 mbps

10. The right to use a domain name is delegated by domain name registers which are accredited by _______

internet architecture board

internet society

internet research task force

internet corporation for assigned names and numbers