Chapter test: Safety and Security of Computer Systems

15 questions

1What is the national helpline number for reporting cyber financial fraud in India? A112 B1098 C181 D1930

2A phishing attack carried out through SMS text messages is known as: AVishing BSmishing CPharming DWhaling

3Consider: 1. A differential backup copies all changes since the last full backup. 2. An incremental backup takes less time to create than a differential backup. 3. Restoring from incremental backups needs only the last full backup and the latest incremental. Which are correct? A1 only B1 and 2 only C2 and 3 only D1, 2 and 3

4Which type of malware replicates itself and spreads across a network without attaching to a host file? AVirus BTrojan Horse CWorm DSpyware

5The padlock symbol and HTTPS in a browser confirm that: AThe website is genuine and trustworthy BThe connection between the browser and the site is encrypted CThe website is free of malware DThe website is registered with the government

6A phishing attack aimed specifically at senior officials such as the Director or Registrar is called: AWhaling BSpear phishing CBaiting DTailgating

7Which of the following is an example of the possession factor of authentication? APassword BFingerprint COTP sent to the registered mobile phone DAnswer to a security question

8An office locker uses a 4-digit numeric PIN in which digits may repeat. How many different PINs are possible? A10,000 B9,000 C5,040 D40

9An officer receives an e-mail showing the Director as sender but from a free web-mail address, urgently asking him to buy gift vouchers and send the codes by reply. What is the most appropriate action? AAct promptly since the request appears to come from the Director BReply to the same e-mail asking the sender to confirm CForward the e-mail with its links to all staff as a warning DTake no action on the request, verify with the Director office through a known official channel, and report the mail to the IT team

10In information security, the CIA triad stands for: AControl, Integrity, Authentication BConfidentiality, Identification, Access CCertification, Integrity, Authorisation DConfidentiality, Integrity, Availability

11A section takes a full backup every Sunday night and an incremental backup every other night. The server crashes on Thursday morning before that night backup. How many backup sets are needed to restore fully? A2 B4 C5 D3

12Which security tool monitors and filters incoming and outgoing network traffic according to predefined rules? AAntivirus BFirewall CRouter DModem

13In a digital signature, the sender signs the message using which key? AThe public key of the receiver BThe private key of the sender CThe public key of the sender DA shared symmetric key

14Malware that encrypts the files on a computer and demands payment for the decryption key is called: ARansomware BAdware CRootkit DKeylogger

15Under the Information Technology Act, 2000, which section deals with identity theft? ASection 43 BSection 66C CSection 66F DSection 72

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