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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. Which are considered WAN connection types? (Choose three.)
Packet Switching - Circuit Switching - Leased Lines
HDLC - PPP - and Frame Relay
Username todd password cisco
HDLC
2. What is the reason why the serial link between the Corp router and the Remote router will not come up?
Show interface
The layer 2 frame types are not compatible
Demarcation point
Point-to-Point Protocol (PPP)
3. The default encapsulation used by Cisco routers over synchronous serial links
HDLC
Frame Relay
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
4. If required - either CHAP or PAP can be used to authenticate a link
High-Level Data Link Control (HDLC) protocol
HDLC - Frame Relay - PPP
Authentication phase
Supplied by the CSU/DSU
5. Less secure; Passwords are sent in clear text
Password Authentication Protocol (PAP)
High-Level Data Link Control (HDLC) protocol
HDLC - Frame Relay - PPP
Username todd password cisco
6. 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
Link establishment phase
Challenge Handshake Authentication Protocol (CHAP)
Link establishment - Authentication phases (optional) - Network layer protocol phase
7. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
PPP - HDLC - Frame Relay
Toll network
Wide Area Network
Integrated Services Digital Network (ISDN)
8. Equipment that's owned by the subscriber and located on the subscriber's premises
Customer premises equipment (CPE)
Point-to-Point Protocol (PPP)
Authentication phase
HDLC
9. 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
Wide Area Network (WAN)
High-Level Data Link Control (HDLC) protocol
Circuit switching
Encapsulation ppp
10. Method for encapsulating datagrams over serial links
Link establishment - Authentication phases (optional) - Network layer protocol phase
LCP
High-Level Data Link Control (HDLC)
Point-to-Point Protocol (PPP)
11. Designed to allow the simultaneous use of multiple Network layer protocols
Point-to-Point Protocol (PPP)
serial transmission
Network control Protocol (NCP)
Link Access Procedure - D-Channel (LAPD)
12. Which type of port on a router is used for a T1?
Point-to-Point Protocol (PPP)
Serial
Wide Area Network
High-Level Data Link Control (HDLC) protocol
13. The spot where the service provider's responsibility ends and the CPE begins
Encapsulation ppp
Frame Relay
NCP
Demarcation point
14. Includes the area from the CSU/DSU - through the provider's wiring and switches - all the way to the CSU/DSU at the other end; provides clocking to the DTE-connected interface (the router's serial interface)
DCE network
HDLC
Demarcation point
Customer premises equipment (CPE)
15. Uses the Network Control Protocol (NCP) to allow multiple Network layer protocols to be encapsulated and sent over a PPP data link
Network layer protocol phase
Show interface serial 0
Point-to-Point Protocol (PPP)
HDLC - Frame Relay - PPP
16. Which of that following is a packet-switching encapsulation?
Frame Relay
High-Level Data Link Control (HDLC)
Network control Protocol (NCP)
Circuit switching
17. HDLC stands for what?
HDLC - LCP - NCP
Point-to-Point Protocol
Show interface serial 0
High-Level Data Link Control
18. What are the two PPP authentication methods?
Link Access Procedure - D-Channel (LAPD)
PAP and CHAP
Show interface serial 0
Point-to-Point Protocol (PPP)
19. To transport layer 3 packets across a Data Link layer point-to-point link
Link establishment phase
Point-to-Point Protocol (PPP)
PAP and CHAP
EIA/TIA-232-C - V.24 - V.35 - and ISDN
20. 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
Point-to-Point Protocol (PPP)
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Frame Relay
NCP
21. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?
Point-to-Point Protocol (PPP)
Link establishment - Authentication phases (optional) - Network layer protocol phase
serial transmission
LCP
22. Which is true regarding HDLC?
PPP - HDLC - Frame Relay
Integrated Services Digital Network (ISDN)
It is Cisco proprietary
Point-to-Point Protocol (PPP)
23. LCP packets are sent by each PPP device to configure and test the link
LCP
Link establishment phase
EIA/TIA-232-C - V.24 - V.35 - and ISDN
HDLC
24. What is the default serial encapsulation used on Cisco routers?
data terminal equipment (DTE)
HDLC
High-Level Data Link Control (HDLC) protocol
Packet Switching - Circuit Switching - Leased Lines
25. What is the default serial encapsulation on a Cisco router?
Demarcation point
High-Level Data Link Control (HDLC) protocol
HDLC
Point-to-Point Protocol (PPP)
26. WAN stands for?
PPP
HDLC - PPP - and Frame Relay
Wide Area Network
PPP - HDLC - Frame Relay
27. Which of the following are considered common Data Link WAN encapsulation types? (Choose three.)
PPP - HDLC - Frame Relay
It is Cisco proprietary
Local loop
Wide Area Network (WAN)
28. 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
It is Cisco proprietary
High-Level Data Link Control (HDLC) protocol
Packet switching
Frame Relay
29. Which encapsulations can be configured on a serial interface? (Choose three.)
HDLC - Frame Relay - PPP
Point-to-Point Protocol
Frame Relay
Encapsulation ppp
30. Method of establishing and configuring different Network layer protocols
LCP
Network control Protocol (NCP)
Link establishment phase
Wide Area Network
31. Write the commands to configure s0 to PPP encapsulation
Config t - interface serial 0 - encapsulation ppp
High-Level Data Link Control (HDLC) protocol
Central office (CO) or point of presence (POP)
Encapsulation ppp
32. What does PPP mean?
Local loop
Point-to-Point Protocol
HDLC
Network control Protocol (NCP)
33. Data Link layer protocol that can be used over either asynchronous serial (dial-up) or synchronous serial (ISDN) media
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Network layer protocol phase
PPP - HDLC - Frame Relay
34. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
data terminal equipment (DTE)
Point-to-Point Protocol (PPP)
Frame Relay
Config t - interface serial 0 - encapsulation ppp
35. Bit-oriented Data Link layer protocol
NCP
HDLC - LCP - NCP
High-Level Data Link Control (HDLC) protocol
Config t - interface serial 0 - encapsulation ppp
36. Derived from Synchronous Data Link Control (SDLC); created by IBM as a Data Link connection protocol; very little overhead compared to LAPB; The HDLC header carries no identification of the type of protocol being carried inside the HDLC encapsulation
Wide Area Network (WAN)
LCP
High-Level Data Link Control (HDLC)
Serial
37. What are the PPP Data Link protocols?
PPP - HDLC - Frame Relay
Demarcation point
HDLC - LCP - NCP
Wide Area Network
38. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router
Network control Protocol (NCP)
Circuit switching
Encapsulation ppp
Username todd password cisco
39. Which of the following encapsulations was considered an upgrade from x.25?
Link Access Procedure - Balanced (LAPB)
Frame Relay
Serial
Point-to-Point Protocol (PPP)
40. Protocol stack is specified at the Physical and Data Link layers only
Point-to-Point Protocol (PPP)
NCP
Show interface serial 0
High-Level Data Link Control (HDLC) protocol
41. Data Link and Physical layer specification that provides high performance; successor to X.25
Frame Relay
Circuit switching
Config t - interface serial 0 - encapsulation ppp
Point-to-Point Protocol (PPP)
42. What is a good command to verify your serial interface on a router?
Frame Relay
Link Access Procedure - Balanced (LAPB)
Show interface
Network control Protocol (NCP)
43. Uses MD5 challange/response
Toll network
Challenge Handshake Authentication Protocol (CHAP)
Serial
Packet switching
44. Which Data Link encapsulation can be used if you have one free serial interface and many remote offices to connect?
Username todd password cisco
High-Level Data Link Control (HDLC) protocol
Packet switching
Frame Relay
45. Uses the LCP (Link Control Protocol) to build and maintain data link connections
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC)
High-Level Data Link Control (HDLC)
The layer 2 frame types are not compatible
46. When a router is connected to a Frame Relay WAN link using a serial DTE interface - how is the clock rate determined?
Supplied by the CSU/DSU
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Demarcation point
Customer premises equipment (CPE)
47. A set of digital services that transmit voice and data over existing phone lines
The layer 2 frame types are not compatible
Point-to-Point Protocol (PPP)
Integrated Services Digital Network (ISDN)
Frame Relay
48. Connects the demarc to the closest switching office - called a central office
Local loop
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Demarcation point
49. Which protocol in PPP is used to identify the routed protocols?
Wide Area Network (WAN)
High-Level Data Link Control (HDLC) protocol
NCP
Link Access Procedure - Balanced (LAPB)
50. What are common Data Link WAN encapsulations?
HDLC - PPP - and Frame Relay
HDLC - LCP - NCP
Wide Area Network
High-Level Data Link Control (HDLC) protocol