McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) , Information Technology Engineering (IT) , Bachelor of Science in Animation SY (BSC [animation]) , Bachelor of Science in Animation (BSc animation) .
| 251. |
The procedure to add bits to the last block is termed as |
| A. | decryption |
| B. | hashing |
| C. | tuning |
| D. | padding |
| Answer» D. padding | |
| 252. |
Cryptanalysis is used |
| A. | to find some insecurity in a cryptographic scheme |
| B. | to increase the speed |
| C. | to encrypt the data |
| D. | to make new ciphers |
| Answer» A. to find some insecurity in a cryptographic scheme | |
| 253. |
Conventional cryptography is also known as or symmetric-key encryption. |
| A. | secret-key |
| B. | public key |
| C. | protected key |
| D. | primary key |
| Answer» A. secret-key | |
| 254. |
is the art & science of cracking the cipher-text without knowing the key. |
| A. | cracking |
| B. | cryptanalysis |
| C. | cryptography |
| D. | crypto-hacking |
| Answer» B. cryptanalysis | |
| 255. |
In cryptography, what is cipher? |
| A. | algorithm for performing encryption and decryption |
| B. | encrypted message |
| C. | both algorithm for performing encryption and decryption and encrypted message |
| D. | decrypted message |
| Answer» A. algorithm for performing encryption and decryption | |
| 256. |
In asymmetric key cryptography, the private key is kept by __________ |
| A. | sender |
| B. | receiver |
| C. | sender and receiver |
| D. | all the connected devices to the network |
| Answer» B. receiver | |
| 257. |
In cryptography, the order of the letters in a message is rearranged by __________ |
| A. | transpositional ciphers |
| B. | substitution ciphers |
| C. | both transpositional ciphers and substitution ciphers |
| D. | quadratic ciphers |
| Answer» A. transpositional ciphers | |
| 258. |
Cryptanalysis is used __________ |
| A. | to find some insecurity in a cryptographic scheme |
| B. | to increase the speed |
| C. | to encrypt the data |
| D. | to make new ciphers |
| Answer» A. to find some insecurity in a cryptographic scheme | |
| 259. |
Which one of the following is a cryptographic protocol used to secure HTTP connection? |
| A. | stream control transmission protocol (sctp) |
| B. | transport layer security (tls) |
| C. | explicit congestion notification (ecn) |
| D. | resource reservation protocol |
| Answer» B. transport layer security (tls) | |
| 260. |
Voice privacy in GSM cellular telephone protocol is provided by _______ |
| A. | a5/2 cipher |
| B. | b5/4 cipher |
| C. | b5/6 cipher |
| D. | b5/8 cipher |
| Answer» A. a5/2 cipher | |
| 261. |
ElGamal encryption system is __________ |
| A. | symmetric key encryption algorithm |
| B. | asymmetric key encryption algorithm |
| C. | not an encryption algorithm |
| D. | block cipher method |
| Answer» B. asymmetric key encryption algorithm | |
| 262. |
Cryptographic hash function takes an arbitrary block of data and returns _________ |
| A. | fixed size bit string |
| B. | variable size bit string |
| C. | both fixed size bit string and variable size bit string |
| D. | variable sized byte string |
| Answer» A. fixed size bit string | |
| 263. |
In the above figure from left to right, the correct order of the shaded levels are |
| A. | network level, application level, transport level |
| B. | application level, network level, transport level |
| C. | transport level, application level, network level |
| D. | network level, transport level, application level |
| Answer» D. network level, transport level, application level | |
| 264. |
In the above figure, which of the above shaded block is transparent to end users and applications? |
| A. | ip/ipsec |
| B. | ssl |
| C. | kerberos |
| D. | s/mime |
| Answer» A. ip/ipsec | |
| 265. |
In terms of Web Security Threats, “Impersonation of another user” is a Passive Attack. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 266. |
Which one of the following is not a higher –layer SSL protocol? |
| A. | alert protocol |
| B. | handshake protocol |
| C. | alarm protocol |
| D. | change cipher spec protocol |
| Answer» C. alarm protocol | |
| 267. |
In the SSL Protocol, each upper layer message if fragmented into a maximum of __________ bytes. |
| A. | 216 |
| B. | 232 |
| C. | 214 |
| D. | 212 |
| Answer» C. 214 | |
| 268. |
The full form of SSL is |
| A. | serial session layer |
| B. | secure socket layer |
| C. | session secure layer |
| D. | series socket layer |
| Answer» B. secure socket layer | |
| 269. |
Which protocol is used to convey SSL related alerts to the peer entity? |
| A. | alert protocol |
| B. | handshake protocol |
| C. | upper-layer protocol |
| D. | change cipher spec protocol |
| Answer» A. alert protocol | |
| 270. |
Which protocol consists of only 1 bit? |
| A. | alert protocol |
| B. | handshake protocol |
| C. | upper-layer protocol |
| D. | change cipher spec protocol |
| Answer» D. change cipher spec protocol | |
| 271. |
Which protocol is used for the purpose of copying the pending state into the current state? |
| A. | alert protocol |
| B. | handshake protocol |
| C. | upper-layer protocol |
| D. | change cipher spec protocol |
| Answer» D. change cipher spec protocol | |
| 272. |
In the alert protocol the first byte takes the value 1 or 2 which corresponds to _________ and _________ respectively. |
| A. | select, alarm |
| B. | alert, alarm |
| C. | warning, alarm |
| D. | warning, fatal |
| Answer» D. warning, fatal | |
| 273. |
Pretty good privacy (PGP) security system uses |
| A. | public key cryptosystem |
| B. | private key cryptosystem |
| C. | public & private key cryptosystem |
| D. | none of the mentioned |
| Answer» C. public & private key cryptosystem | |
| 274. |
Data compression includes |
| A. | removal of redundant character |
| B. | uniform distribution of characters |
| C. | removal of redundant character & uniform distribution of characters |
| D. | none of the mentioned |
| Answer» C. removal of redundant character & uniform distribution of characters | |
| 275. |
PGP offers _____ block ciphers for message encryption. |
| A. | triple-des |
| B. | cast |
| C. | idea |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 276. |
Which of the following is not a secured mail transferring methodology? |
| A. | pop3 |
| B. | ssmtp |
| C. | mail using pgp |
| D. | s/mime |
| Answer» A. pop3 | |
| 277. |
__________ is used for encrypting data at network level. |
| A. | ipsec |
| B. | https |
| C. | smtp |
| D. | s/mime |
| Answer» A. ipsec | |
| 278. |
S/MIME is abbreviated as __________________ |
| A. | secure/multimedia internet mailing extensions |
| B. | secure/multipurpose internet mailing extensions |
| C. | secure/multimedia internet mail extensions |
| D. | secure/multipurpose internet mail extensions |
| Answer» D. secure/multipurpose internet mail extensions | |
| 279. |
PGP encrypts data by using a block cipher called ______ |
| A. | international data encryption algorithm |
| B. | private data encryption algorithm |
| C. | internet data encryption algorithm |
| D. | local data encryption algorithm |
| Answer» A. international data encryption algorithm | |
| 280. |
When were VPNs introduced into the commercial world? |
| A. | early 80’s |
| B. | late 80’s |
| C. | early 90’s |
| D. | late 90’s |
| Answer» D. late 90’s | |
| 281. |
What protocol is NOT used in the operation of a VPN? |
| A. | pptp |
| B. | ipsec |
| C. | ymum |
| D. | l2tp |
| Answer» C. ymum | |
| 282. |
Which of the following statements is NOT true concerning VPNs? |
| A. | financially rewarding compared to leased lines |
| B. | allows remote workers to access corporate data |
| C. | allows lan-to-lan connectivity over public networks |
| D. | is the backbone of the internet |
| Answer» D. is the backbone of the internet | |
| 283. |
Traffic in a VPN is NOT ____________ |
| A. | invisible from public networks |
| B. | logically separated from other traffic |
| C. | accessible from unauthorized public networks |
| D. | restricted to a single protocol in ipsec |
| Answer» C. accessible from unauthorized public networks | |
| 284. |
Which layer 3 protocols can be transmitted over an L2TP VPN? |
| A. | only ip |
| B. | only ipx |
| C. | only icmp |
| D. | ip and ipx |
| Answer» D. ip and ipx | |
| 285. |
ESP (Encapsulating Security Protocol) is defined in which of the following standards? |
| A. | ipsec |
| B. | pptp |
| C. | ppp |
| D. | l2tp |
| Answer» A. ipsec | |
| 286. |
L2F was developed by which company? |
| A. | microsoft |
| B. | cisco |
| C. | blizzard entertainment |
| D. | ietf |
| Answer» B. cisco | |
| 287. |
Which layer of the OSI reference model does PPTP work at? |
| A. | layer 1 |
| B. | layer 2 |
| C. | layer 3 |
| D. | layer 4 |
| Answer» B. layer 2 | |
| 288. |
Which layer of the OSI reference model does IPsec work at? |
| A. | layer 1 |
| B. | layer 2 |
| C. | layer 3 |
| D. | layer 4 |
| Answer» C. layer 3 | |
| 289. |
Firewalls can be of _______ kinds. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 290. |
_________________ is the kind of firewall is connected between the device and the network connecting to internet. |
| A. | hardware firewall |
| B. | software firewall |
| C. | stateful inspection firewall |
| D. | microsoft firewall |
| Answer» A. hardware firewall | |
| 291. |
_________ is software that is installed using an internet connection or they come by-default with operating systems. |
| A. | hardware firewall |
| B. | software firewall |
| C. | stateful inspection firewall |
| D. | microsoft firewall |
| Answer» B. software firewall | |
| 292. |
Which of the following is not a software firewall? |
| A. | windows firewall |
| B. | outpost firewall pro |
| C. | endian firewall |
| D. | linksys firewall |
| Answer» D. linksys firewall | |
| 293. |
Firewall examines each ____________ that are entering or leaving the internal network. |
| A. | emails users |
| B. | updates |
| C. | connections |
| D. | data packets |
| Answer» D. data packets | |
| 294. |
A firewall protects which of the following attacks? |
| A. | phishing |
| B. | dumpster diving |
| C. | denial of service (dos) |
| D. | shoulder surfing |
| Answer» C. denial of service (dos) | |
| 295. |
There are ______ types of firewall. |
| A. | 5 |
| B. | 4 |
| C. | 3 |
| D. | 2 |
| Answer» B. 4 | |
| 296. |
Packet filtering firewalls are deployed on ________ |
| A. | routers |
| B. | switches |
| C. | hubs |
| D. | repeaters |
| Answer» A. routers | |
| 297. |
In the ______________ layer of OSI model, packet filtering firewalls are implemented. |
| A. | application layer |
| B. | session layer |
| C. | presentation layer |
| D. | network layer |
| Answer» D. network layer | |
| 298. |
The __________ defines the packet filtering firewall rules. |
| A. | access control list |
| B. | protocols |
| C. | policies |
| D. | ports |
| Answer» A. access control list | |
| 299. |
ACL stands for _____________ |
| A. | access condition list |
| B. | anti-control list |
| C. | access control logs |
| D. | access control list |
| Answer» D. access control list | |
| 300. |
When a packet does not fulfil the ACL criteria, the packet is _________ |
| A. | resend |
| B. | dropped |
| C. | destroyed |
| D. | acknowledged as received |
| Answer» B. dropped | |
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