Sistema Institucional de Evaluación Educativa

C. Frame Relay D. X.25

30. Which is NOT a remote security method? A. VoIP

B. Callback C. Caller ID

D. Restricted Address

31. What does covert channel eavesdropping refer to?

A. Using a hidden, unauthorized network connection to communicate unauthorized information

B. Nonbusiness or personal use of the Internet

C. Socially engineering passwords from an ISP

D. The use of two -factor passwords

32. What does logon abuse refer to?

A. Breaking into a network primarily from an external source

B. Legitimate users accessing networked services that would normally be restricted to them C. Nonbusiness or personal use

D. Intrusions via dial-up or asynchronous external network connections

33. What is probing used for?

A. To induce a user into taking an incorrect action

B. To give an attacker a road map of the network

C. To use up all of a target’s resources

D. To covertly listen to transmissions

34. Which is NOT a property of or issue with tape backup?

A. Slow data transfer during backups and restores

B. Server disk space utilization expands

C. Possible that some data re- entry may need to be performed after a crash

D. One large disk created by using several disks

35. What is a Server Cluster?

A. A primary server that mirrors its data to a secondary server B. A group of independent

servers that are managed as a single system

C. A tape array backup implementation

D. A group of WORM optical jukeboxes

36. In which OSI layer does the MIDI digital music protocol standard reside?

A. Application Layer B. Presentation Layer C. Session Layer D. Transport Layer Answers

1. Answer: d) GAN does not exist. LAN stands for Local Area

Network, WAN stands for Wide Area Network, and MAN stands for Metropolitan Network.

2. Answer: b) Token Ring. Token Ring is a LAN media access

3. Answer: c). A packet filtering firewall can operate at the Network or Transport Layers.

4. Answer: a). PGP stands for Pretty Good Privacy, an e-mail

encryption technology.

5. Answer: c). A stateful inspection firewall is considered a third

generation firewall.

6. Answer: a). Redundant Arrays of Intelligent Disks. The other

acronyms do not exist.

7. Answer: c). Private addresses are not easily routable, thereby

the reason for using NAT.

8. Answer: b).

9. Answer: b). The other acronyms do not exist.

10. Answer: c). Packet-switched networks are considered connection-less networks, circuit-switched networks are considered connection-oriented.

11. Answer: b). The Internet Layer is a TCP/IP architecture model layer.

12. Answer: d). The Session Layer is a OSI model layer. 13. Answer: c) Reactive is not a backup method.

14. Answer: c) The other acronyms do not exist.

15. Answer: b) Data Encapsulation attaches information from one layer to the packet as it travels from an adjoining layer. a) The OSI layered architecture model creates seven layers. c) the TCP/IP protocol UDP provides “best effort” packet delivery, and d) a token-passing transmission scheme creates a deterministic network because it’s possible to compute the maximum predictable delay.

16. Answer: b). TACACS+ has nothing to do with frame relay networks.

17. Answer: a) Cabling termination errors are an inherent issue with bus topology networks.

18. Answer: b). FDDI is a RING topology, like Token Ring.

19. Answer: c). Address Resolution Protocol starts with an IP address, then queries the network to find the MAC, or hardware address of the workstation it belongs to. ICMP does b), RARP does a), and FTP does d).

20. Answer: a). The reverse of ARP. The Reverse Address Resolution Protocol knows a MAC (Media Access Control) address and asks the RARP server to match it with an IP address.

21. Answer: b). Simple Mail Transport Protocol, queues and transfers email. SNMP stands for Simple Network Management Protocol. ICMP stands for Internet Control Message Protocol. RARP stands for Reverse Address Resolution Protocol

22. Answer: d). UTP stands for unshielded twisted pair wiring. 23. Answer: c). The Polling transmission type uses primary and

secondary hosts, and the secondary must wait for permission from the primary before transmitting.

24. Answer: c). Ethernet networks were originally designed to work with more sporadic traffic than token ring networks.

25. Answer: c) Fiber Optic cable is much harder to tap than copper cable.

26. Answer:: c). A bridge operates at Layer 2, and therefore does not use IP addressing to make routing decisions.

27. Answer: b). FDSL does not exist.

28. Answer: a) Permanent connections are a feature of circuit- switched networks.

29. Answer: b). A T1 line is a type of leased line, which uses a dedicated, point-to-point technology.

30. Answer: a) VoIP stands for Voice-Over-IP, a digital telephony technology.

31. Answer: a). A Covert Channel is a connection intentionally created to transmit unauthorized information from inside a trusted network to a partner at an outside, untrusted node. c) is called Masquerading.

32. Answer: b). Logon abuse entails an otherwise proper user attempting to access areas of the network that are deemed off- limits. a) is called network intrusion and d) is called a back-door attack.

33. Answer: b) Probing is a procedure where the intruder runs programs that scan the network to create a network map for later intrusion. a) is spoofing, c) is the objective of a denial of service attack, and d) is passive eavesdropping.

34. Answer: d). RAID level 0, striping is the process of creating a large disk out of several smaller disks.

35. Answer: b). A server cluster is a group of servers that appear to be a single server to the user. a) refers to Redundant Servers.