Networking Basic Question

1
   Question   Which One is True
   1.   FTP Port - 110
   2.   Telnet Port - 25
   3.   SMTP Port - 25
   4.   SSH Port - 2Answer
   5.   POP Port - 25
   Answer. 3

2
   Question   The correct syntax to be written in the web browser to browse 9090 port of  www.shortnotesbd.com
   1.   http://www.shortnotesbd.com:9090
   2.   http://www.shortnotesbd.com::9090
   3.   http://9090:www.shortnotesbd.com
   4.   http://www.shortnotesbd.com/9090
   5.   All of above
   Answer. 1

3
   Question   The network layer concerns with
   1.   frames
   2.   Segment
   3.   Data
   4.   packets
   5.   bits
   Answer. 4

4
   Question   Which one of the following is not a function of network layer?
   1.   Path Selection
   2.   inter-networking
   3.   routing
   4.   congestion control
   5.   none of the mentioned
   Answer. 4

5
   Question   Which multiple access technique is used by IEEE 802.11 standard for wireless LAN? a)  b)  c) d) none of the mentioned View Answer
   1.   CDMA
   2.   CSMA/CA
   3.    ALOHA
   4.   None of the mentioned
   5.   All of above
   Answer. 2

Answer
   Question   What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask?
   1.   30
   2.   1Answer
   3.   14
   4.   8
   5.   4
   Answer. 1

7
   Question   Simple mail transfer protocol (SMTP) utilizes ____ as the transport layer protocol for electronic mail transfer. a
   1.   TCP
   2.   UDP
   3.   ARP
   4.   DCCP
   5.   SCTP
   Answer. 1

8
   Question   FTP server listens for connection on port number
   1.   20
   2.   21
   3.   22
   4.   23
   5.   24
   Answer. 2

9
   Question   Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____.
   1.   1 2 3
   2.   3 3 1
   3.   3 2 2
   4.   2 3 1
   5.   3 2 1
   Answer. 5

10
   Question   You need to subnet a network that has 5 subnets each with at least 1Answer hosts. Which classful subnet mask would you use?  A. B. C. D.
   1.   255.255.255.240
   2.   255.255.255.224
   3.   255.255.255.192
   4.   255.255.255.252
   5.   255.255.255.248
   Answer. 2