21. Junk E-mail is also called

1. 1. spam

   
   
   

   2. spoof

   
   
   

   3. sniffer script

   
   
   

   4. spool

   
   
   

   5. None of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

22. Which one of the following is a key function of firewall ?

1. 1. Monitoring

   
   
   

   2. Deleting

   
   
   

   3. Copying

   
   
   

   4. Moving

   
   
   

   5. None of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

---

23. Which of the following is a criminal activity attempting to acquire sensitive information such as passwords, credit cards, debits by masquerading as a trustworthy person or business in an electronic communication ?

1. 1. Spoofing

   
   
   

   2. Phishing

   
   
   

   3. Stalking

   
   
   

   4. Hacking

   
   
   

   5. None of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---

24. A firewall operated by

1. 1. the pre-purchase phase

   
   
   

   2. isolating intranet from extranet

   
   
   

   3. screening packets to/from the network and provide controllable filtering of network traffic

   
   
   

   4. All of the above

   
   
   

   5. None of the above

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---

---

25. Which one of the following is a cryptographic protocol used to secure http connections ?

1. 1. Stream Control Transmission Protocol (SCTP)

   
   
   

   2. Transport Layer Security (TLS)

   
   
   

   3. Explicit Congestion Notification (ECN)

   
   
   

   4. Resource Reservation Protocol (RRP)

   
   
   

   5. None of the above

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---