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Test your basic knowledge |
Wide Area Netwoking Protocols
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
LAPD
serial transmission
Toll network
Integrated Services Digital Network (ISDN)
2. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?
Central office (CO) or point of presence (POP)
Frame Relay
High-Level Data Link Control (HDLC) protocol
Link establishment - Authentication phases (optional) - Network layer protocol phase
3. Uses dial-up modems or ISDN and is used for low-bandwidth data transfers; No data can transfer before an end-to-end connection is established
Encapsulation ppp
Username todd password cisco
Local loop
Circuit switching
4. Data Link layer protocol that can be used over either asynchronous serial (dial-up) or synchronous serial (ISDN) media
HDLC - PPP - and Frame Relay
Integrated Services Digital Network (ISDN)
CSU/DSU
Point-to-Point Protocol (PPP)
5. What are common Data Link WAN encapsulations?
CSU/DSU
data terminal equipment (DTE)
Asynchronous Transfer Mode (ATM)
HDLC - PPP - and Frame Relay
6. Which of the following encapsulations was considered an upgrade from x.25?
High-Level Data Link Control (HDLC) protocol
Frame Relay
Link establishment - Authentication phases (optional) - Network layer protocol phase
data terminal equipment (DTE)
7. Allows you to share bandwidth with other companies to save money; a network that's designed to look like a leased line yet charges you (and costs) more like circuit switching; data transfers are bursty in nature; Frame Relay and X.25
LAPD
Authentication phase
Packet switching
Show interface serial 0
8. Less secure; Passwords are sent in clear text
The layer 2 frame types are not compatible
Link Control Protocol (LCP)
Password Authentication Protocol (PAP)
Integrated Services Digital Network (ISDN)
9. Designed to allow the simultaneous use of multiple Network layer protocols
Local loop
Network control Protocol (NCP)
Point-to-Point Protocol (PPP)
Link Access Procedure - D-Channel (LAPD)
10. What are the PPP Data Link protocols?
HDLC - LCP - NCP
Leased lines
serial transmission
Network control Protocol (NCP)
11. Uses the LCP (Link Control Protocol) to build and maintain data link connections
Customer premises equipment (CPE)
HDLC - LCP - NCP
Point-to-Point Protocol (PPP)
LAPD
12. To transport layer 3 packets across a Data Link layer point-to-point link
Asynchronous Transfer Mode (ATM)
PPP - HDLC - Frame Relay
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
13. What is a good command to verify your serial interface on a router?
Point-to-Point Protocol (PPP)
Serial
Point-to-Point Protocol (PPP)
Show interface
14. Used with ISDN at the Data Link layer (layer 2) as a protocol for the D (signaling) channel
Link Access Procedure - D-Channel (LAPD)
Point-to-Point Protocol (PPP)
Show interface serial 0
Link establishment - Authentication phases (optional) - Network layer protocol phase
15. Method for encapsulating datagrams over serial links
Password Authentication Protocol (PAP)
High-Level Data Link Control (HDLC)
Point-to-Point Protocol (PPP)
Packet Switching - Circuit Switching - Leased Lines
16. What is the default serial encapsulation on a Cisco router?
Link Access Procedure - D-Channel (LAPD)
Username todd password cisco
LCP
HDLC
17. Equipment that's owned by the subscriber and located on the subscriber's premises
Link Access Procedure - D-Channel (LAPD)
LAPD
serial transmission
Customer premises equipment (CPE)
18. Write the command to see the encapsulation method on serial 0 of a Cisco router
It is Cisco proprietary
Asynchronous Transfer Mode (ATM)
Show interface serial 0
HDLC
19. Protocol stack is specified at the Physical and Data Link layers only
Point-to-Point Protocol (PPP)
Frame Relay
High-Level Data Link Control
Link Control Protocol (LCP)
20. The spot where the service provider's responsibility ends and the CPE begins
Asynchronous Transfer Mode (ATM)
Point-to-Point Protocol (PPP)
Demarcation point
Show interface serial 0
21. Nonproprietary
Point-to-Point Protocol (PPP)
Encapsulation ppp
Network layer protocol phase
Wide Area Network (WAN)
22. Which encapsulations can be configured on a serial interface? (Choose three.)
Password Authentication Protocol (PAP)
High-Level Data Link Control (HDLC) protocol
HDLC - Frame Relay - PPP
Packet Switching - Circuit Switching - Leased Lines
23. The default encapsulation used by Cisco routers over synchronous serial links
DCE network
High-Level Data Link Control (HDLC) protocol
Show interface serial 0
Packet Switching - Circuit Switching - Leased Lines
24. If you had one serial interface on your router and needed to connect many remote locations - which Data Link encapsulation should you use?
Frame Relay
Frame Relay
Username todd password cisco
Point-to-Point Protocol (PPP)
25. Which is true regarding HDLC?
Point-to-Point Protocol (PPP)
It is Cisco proprietary
PAP and CHAP
Frame Relay
26. A set of digital services that transmit voice and data over existing phone lines
Integrated Services Digital Network (ISDN)
HDLC - Frame Relay - PPP
Show interface serial 0
Central office (CO) or point of presence (POP)
27. Used to create point-to-point links between different vendors' equipment; uses a Network Control Protocol field in the Data Link header to identify the Network layer protocol; allows authentication and multilink connections and can be run over asynch
PPP
It is Cisco proprietary
Authentication phase
Point-to-Point Protocol (PPP)
28. HDLC stands for what?
serial transmission
Frame Relay
Point-to-Point Protocol (PPP)
High-Level Data Link Control
29. Data Link and Physical layer specification that provides high performance; successor to X.25
Link establishment - Authentication phases (optional) - Network layer protocol phase
Frame Relay
Serial
High-Level Data Link Control (HDLC)
30. Which of the following protocols are used with ISDN as an out-of-band protocol?
PAP and CHAP
The layer 2 frame types are not compatible
Circuit switching
LAPD
31. Which Data Link encapsulation can be used if you have one free serial interface and many remote offices to connect?
HDLC - LCP - NCP
Leased lines
Point-to-Point Protocol (PPP)
Frame Relay
32. What are the two PPP authentication methods?
High-Level Data Link Control (HDLC) protocol
PAP and CHAP
Point-to-Point Protocol (PPP)
Customer premises equipment (CPE)
33. Bit-oriented Data Link layer protocol
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
HDLC - PPP - and Frame Relay
Point-to-Point Protocol (PPP)
34. Physical layer international standard for serial communication
Point-to-Point Protocol (PPP)
Username todd password cisco
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Point-to-Point Protocol (PPP)
35. To connect two DTE networks together through a DCE network
NCP
Wide Area Network (WAN)
Show interface
Frame Relay
36. A point-to-point connection or dedicated connection; a pre-established WAN communications path from the CPE through the DCE switch to the CPE of the remote site - allowing DTE networks to communicate at any time with no setup procedures before transm
Leased lines
Frame Relay
Local loop
Asynchronous Transfer Mode (ATM)
37. What is the default serial encapsulation used on Cisco routers?
Link Access Procedure - Balanced (LAPB)
HDLC
Link establishment phase
NCP
38. WAN stands for?
High-Level Data Link Control (HDLC)
The layer 2 frame types are not compatible
Point-to-Point Protocol (PPP)
Wide Area Network
39. Connects the demarc to the closest switching office - called a central office
High-Level Data Link Control (HDLC) protocol
Wide Area Network (WAN)
Frame Relay
Local loop
40. The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols - needs authentication of users connecting to the network - and - since some calls wil
HDLC - LCP - NCP
PPP - HDLC - Frame Relay
Demarcation point
PPP
41. Network Control Protocol (NCP) is used to allow multiple Network layer protocols (routed protocols) to be used on a point-to-point connection
Point-to-Point Protocol (PPP)
Network control Protocol (NCP)
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol
42. Which of that following is a packet-switching encapsulation?
Point-to-Point Protocol (PPP)
EIA/TIA-232-C - V.24 - V.35 - and ISDN
PAP and CHAP
Frame Relay
43. When a router is connected to a Frame Relay WAN link using a serial DTE interface - how is the clock rate determined?
Authentication phase
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Supplied by the CSU/DSU
Point-to-Point Protocol (PPP)
44. Which are considered WAN connection types? (Choose three.)
Challenge Handshake Authentication Protocol (CHAP)
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Packet Switching - Circuit Switching - Leased Lines
DCE network
45. If you have a T1 - what must you connect from your router to a demarc?
Supplied by the CSU/DSU
Toll network
Point-to-Point Protocol (PPP)
CSU/DSU
46. How do you configure a serial interface to use PPP encapsulation?
LCP
Link Access Procedure - Balanced (LAPB)
Encapsulation ppp
PPP
47. If required - either CHAP or PAP can be used to authenticate a link
Password Authentication Protocol (PAP)
HDLC
LAPD
Authentication phase
48. What does PPP mean?
Point-to-Point Protocol
Config t - interface serial 0 - encapsulation ppp
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
49. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
LAPD
Config t - interface serial 0 - encapsulation ppp
50. A point-to-point protocol used on leased lines
Encapsulation ppp
Serial
High-Level Data Link Control (HDLC) protocol
Demarcation point