Sikkim-Manipal University of Health Medical and Technological Sciences (SMUHMTS) 2008-3rd Sem M.C.A Model for of Manipal University - Question Paper

32) PGP uses how many bit keys

a) 128
b) 126
c) 125
d) 122


33) DES uses how may bit key.

a) 56 bit
b) 58 bit
c) 59 bit
d) 55 bit


34) The art of breaking art of cipher is called--------------- (Cryptanalysis)

35) S / MIME stand for ------------------------- (Secure / multipurpose internet merit extent ion)

36) People authenticate other people by faces, voices and handwriting. True/ False

37) At the physical layer firewalls can be installed True/ False

38) The messages kinds which BGP describes are

a) One
b) Two
c) Three
d) Four

39) __________________ (Videoconference) technology obtains extensively helpful for remote school.

40) _____________ (Session & presentation) layers are not there in TCP / IP reference model.
[2 MARKS EACH]
41) The feistel(f) function, DES operates on ----------------- at a time and consists of -----------stages. (32, 4)

42) Theommon reasons for applying a digital signature are ------------&----------------(Authentication, integrity

43) If the plain text is ATTACK and cipher text after substitution is “CVVCEM” then the key is --------------------- (+2)
44) The output of the encryption process known as

a) Cipher text
b) English text
c) Plain text
d) None


45) The various kinds of intruders are
a) Active
b) Passive
46) The plain text is “ATTACK” it can be encrypted as with key used

a) ATTACK
b) BUUBDL
c) CRACED
d) BATAKT


47) Network security issues can be divided mainly into categories
a) 1
b) 2
c) 3
d) None

48) Network security mainly divided into --------------,---------------&------------------.
(Secrecy, Authentication and Non-repudiation)

49) Internet E-mail messages consist of -----------------major parts. They are--------------- (Two, Header and body)

50) IRC is --------------------and it is ------------------users.(Internet relay chat, mulh)

51) With gopher, every document has a described ------------and gopher client functionally was quickly duplicated by early web browsers such as -------------(Format type, mosaic)

52) The source of the name -------------is columned to be threefold (Gopher )

53) The 2 main popular browsers are ___________ & ______________-(Internet explorer, Netscape navigator)

54) -----------------defined a standard procedure to support the sub netting. (RFC 950)

55) Frame learner is subdivided into___________and _______________. (Physical, IP)

56) How many addresses are in ranging from 194.24.0.0 to 194.24.31.255 that are
a) 1024 address
b) 1026 address
c) 1022 address
d) None
57) In BGP-4 messages kinds the meaning of
a) Open initialize communication
b) Up date advertise or withdraw route
c) Notification response to an incorrect message
d) Keep alive actively test peer connectivity
Is this statement actual or false? True

58) BGP messages kind are _________,___________,_________and ____________. (Open message, up date message , Notification message, keep active message)

59) Fields of hello messages formats are _________,_________and ________,________.
( Network mask , Dead timer , Hello inter , Gway prio)

60) Inter NIC is known as –
a) International Net info Communication
b) Inter Network info Command
c) International Network Institute Center
d) International Network info Center
[4 MARKS EACH]
61) The main 4 layers used in TCP / IP refrence model are_________,_________, ___ _________and ______________.
i. Physical
ii. Network interface
iii. Internet
iv. Transport

62) Few application level services are_________,________,________&_________.
(E-mail, FTP, Remote login, World Wide Web)

63) Few network level services are _________________and _______________.
(Connectionless packet delivery services , Reliable stream transport services)

64) various classes of IP addresses are ______, _________, ________, ________ & ________.
(Class A , Class B , Class C, Class D, Class E)

65) The internet address is _________and ____________IP address is _________bit long. (48 bit and 32 bit)

66) ARP is described in RFC ___________and it is a current internet standard_________.
(826 and STD 37)

67) ARP reply frame header is subdivided again into _________and_________.
(hysical address , IP address)

68) ail secure system consisting of ________,___________&______________.
(PGP, PEM, S/MIME)

69) The precedence value is ____________integer Default value for lifetime is _______.
(Two’s complement, 30 minutes)

70) _________and_______class can’t accommodate more than 254 hosts.
(Class A, Class B)

71) Match the subsequent
Host ID Classes
Class A
Class B
Class C
a) 1-b, 2-a, 3-c
b) 1-b, 2-c,3-a
c) 1-a, 2-b, 3-c
d) None
72) Match the subsequent
Physical address IP address
02-60-8A-01-02-04 (a) 192.168.0.1
08-03-8A-01-02-04 (b) 192.168.0.2
08-03-8A-01-02-04 (c) 192.168.0.3
a) 1-a, 2-b, 3-c
b) 1-b, 3-c, 2-a
c) 1-b, 3-a, 2-c
d) 1-c, 2-b, 3-a

73) OSPF supports 3 types of connection and networks.
a) Point to point lines b/w exactly 2 routers.
b) Multi-access networks with broadcasting.
c) Multi-access networks without broadcasting.
d) All of the above

74) The 3 steps needed for inter area routing are _________,_______and _________.
(Go from source to backbone , Go across the backbone to the destination area, Go to the destination)

75) The address reserved for private networks is
a) 172.16.255.0
b) 173.15.256.1
c) 173.15.258.2
d) None

Earning:   Approval pending.