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Wide Area Netwoking Protocols
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Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
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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. If you had one serial interface on your router and needed to connect many remote locations - which Data Link encapsulation should you use?
HDLC
Frame Relay
Frame Relay
HDLC - Frame Relay - PPP
2. Data Link and Physical layer specification that provides high performance; successor to X.25
Frame Relay
Central office (CO) or point of presence (POP)
Password Authentication Protocol (PAP)
LCP
3. 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
PPP
Wide Area Network (WAN)
LAPD
High-Level Data Link Control (HDLC) protocol
4. What are the PPP Data Link protocols?
Network control Protocol (NCP)
Authentication phase
HDLC - LCP - NCP
It is Cisco proprietary
5. Write the command to see the encapsulation method on serial 0 of a Cisco router
Show interface serial 0
High-Level Data Link Control (HDLC) protocol
Frame Relay
High-Level Data Link Control (HDLC) protocol
6. Which of the following are considered common Data Link WAN encapsulation types? (Choose three.)
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Frame Relay
PPP - HDLC - Frame Relay
7. 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
High-Level Data Link Control
HDLC - Frame Relay - PPP
8. 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
Show interface serial 0
HDLC - PPP - and Frame Relay
Circuit switching
Frame Relay
9. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
Integrated Services Digital Network (ISDN)
Toll network
Network control Protocol (NCP)
Point-to-Point Protocol (PPP)
10. One bit at a time over a single channel
High-Level Data Link Control (HDLC) protocol
serial transmission
Packet Switching - Circuit Switching - Leased Lines
Authentication phase
11. Method of establishing - configuring - maintaining - and terminating the point-to-point connection
Encapsulation ppp
Config t - interface serial 0 - encapsulation ppp
Link establishment - Authentication phases (optional) - Network layer protocol phase
Link Control Protocol (LCP)
12. If required - either CHAP or PAP can be used to authenticate a link
Authentication phase
Integrated Services Digital Network (ISDN)
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
13. Write the commands to configure s0 to PPP encapsulation
Config t - interface serial 0 - encapsulation ppp
High-Level Data Link Control (HDLC) protocol
Link Access Procedure - D-Channel (LAPD)
Point-to-Point Protocol (PPP)
14. Which type of port on a router is used for a T1?
Network layer protocol phase
Serial
Challenge Handshake Authentication Protocol (CHAP)
Frame Relay
15. To transport layer 3 packets across a Data Link layer point-to-point link
Point-to-Point Protocol (PPP)
Frame Relay
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Packet switching
16. This point connects the customers to the provider's switching network
Central office (CO) or point of presence (POP)
Local loop
Serial
Point-to-Point Protocol (PPP)
17. What is the default serial encapsulation used on Cisco routers?
HDLC
High-Level Data Link Control (HDLC) protocol
High-Level Data Link Control (HDLC) protocol
HDLC - LCP - NCP
18. 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
HDLC - PPP - and Frame Relay
Central office (CO) or point of presence (POP)
Link establishment phase
High-Level Data Link Control (HDLC)
19. Physical layer international standard for serial communication
Frame Relay
Frame Relay
Point-to-Point Protocol (PPP)
EIA/TIA-232-C - V.24 - V.35 - and ISDN
20. Equipment that's owned by the subscriber and located on the subscriber's premises
Customer premises equipment (CPE)
Leased lines
Link Control Protocol (LCP)
Point-to-Point Protocol (PPP)
21. No authentication
Central office (CO) or point of presence (POP)
High-Level Data Link Control (HDLC)
Packet Switching - Circuit Switching - Leased Lines
High-Level Data Link Control (HDLC) protocol
22. What are common Data Link WAN encapsulations?
HDLC - PPP - and Frame Relay
Asynchronous Transfer Mode (ATM)
Frame Relay
Central office (CO) or point of presence (POP)
23. Designed to allow the simultaneous use of multiple Network layer protocols
Network control Protocol (NCP)
High-Level Data Link Control (HDLC) protocol
Link establishment - Authentication phases (optional) - Network layer protocol phase
Password Authentication Protocol (PAP)
24. Protocol stack is specified at the Physical and Data Link layers only
Point-to-Point Protocol (PPP)
Link Access Procedure - Balanced (LAPB)
High-Level Data Link Control (HDLC) protocol
NCP
25. Connects the demarc to the closest switching office - called a central office
Local loop
Network control Protocol (NCP)
High-Level Data Link Control
serial transmission
26. Which are considered WAN connection types? (Choose three.)
Point-to-Point Protocol (PPP)
The layer 2 frame types are not compatible
Network control Protocol (NCP)
Packet Switching - Circuit Switching - Leased Lines
27. What is the reason why the serial link between the Corp router and the Remote router will not come up?
High-Level Data Link Control (HDLC)
The layer 2 frame types are not compatible
Point-to-Point Protocol (PPP)
Frame Relay
28. What is a good command to verify your serial interface on a router?
Show interface
High-Level Data Link Control (HDLC) protocol
PPP - HDLC - Frame Relay
HDLC - LCP - NCP
29. What does PPP mean?
Point-to-Point Protocol
Frame Relay
Username todd password cisco
Network layer protocol phase
30. Used with ISDN at the Data Link layer (layer 2) as a protocol for the D (signaling) channel
Serial
Link Access Procedure - D-Channel (LAPD)
Wide Area Network
Show interface
31. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?
HDLC - LCP - NCP
HDLC
data terminal equipment (DTE)
Link establishment - Authentication phases (optional) - Network layer protocol phase
32. When a router is connected to a Frame Relay WAN link using a serial DTE interface - how is the clock rate determined?
data terminal equipment (DTE)
Supplied by the CSU/DSU
High-Level Data Link Control (HDLC) protocol
High-Level Data Link Control (HDLC) protocol
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)
Challenge Handshake Authentication Protocol (CHAP)
High-Level Data Link Control (HDLC) protocol
34. Which of the following protocols are used with ISDN as an out-of-band protocol?
PPP - HDLC - Frame Relay
High-Level Data Link Control (HDLC) protocol
LAPD
Central office (CO) or point of presence (POP)
35. Proprietary
CSU/DSU
High-Level Data Link Control (HDLC) protocol
Central office (CO) or point of presence (POP)
PAP and CHAP
36. If you have a T1 - what must you connect from your router to a demarc?
CSU/DSU
It is Cisco proprietary
Packet switching
Wide Area Network
37. How do you configure a serial interface to use PPP encapsulation?
Integrated Services Digital Network (ISDN)
Encapsulation ppp
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
38. Bit-oriented Data Link layer protocol
High-Level Data Link Control (HDLC) protocol
Frame Relay
Wide Area Network
Show interface serial 0
39. A set of digital services that transmit voice and data over existing phone lines
Show interface
Authentication phase
HDLC - PPP - and Frame Relay
Integrated Services Digital Network (ISDN)
40. HDLC stands for what?
Frame Relay
High-Level Data Link Control
Demarcation point
Central office (CO) or point of presence (POP)
41. Which encapsulations can be configured on a serial interface? (Choose three.)
High-Level Data Link Control (HDLC) protocol
EIA/TIA-232-C - V.24 - V.35 - and ISDN
HDLC - Frame Relay - PPP
The layer 2 frame types are not compatible
42. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router
Point-to-Point Protocol (PPP)
HDLC - LCP - NCP
High-Level Data Link Control (HDLC) protocol
Username todd password cisco
43. A connection-oriented protocol at the Data Link layer for use with X.25; causes a tremendous amount of overhead because of its strict time-out and windowing techniques; can also be used as a simple data link transport
Link Access Procedure - Balanced (LAPB)
Encapsulation ppp
Central office (CO) or point of presence (POP)
High-Level Data Link Control (HDLC) protocol
44. LCP packets are sent by each PPP device to configure and test the link
PPP - HDLC - Frame Relay
Link establishment phase
PPP
High-Level Data Link Control (HDLC) protocol
45. What is the default serial encapsulation on a Cisco router?
Circuit switching
HDLC
Asynchronous Transfer Mode (ATM)
LCP
46. The default encapsulation used by Cisco routers over synchronous serial links
High-Level Data Link Control (HDLC) protocol
Frame Relay
Point-to-Point Protocol
Password Authentication Protocol (PAP)
47. Serial interfaces by default; connect into data communication equipment (DCE)
data terminal equipment (DTE)
NCP
High-Level Data Link Control (HDLC) protocol
It is Cisco proprietary
48. 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)
Point-to-Point Protocol (PPP)
Point-to-Point Protocol (PPP)
Packet switching
DCE network
49. Which Data Link encapsulation can be used if you have one free serial interface and many remote offices to connect?
Link Access Procedure - D-Channel (LAPD)
Point-to-Point Protocol (PPP)
Frame Relay
High-Level Data Link Control (HDLC) protocol
50. Which is true regarding HDLC?
It is Cisco proprietary
Frame Relay
Demarcation point
Password Authentication Protocol (PAP)
Can you answer 50 questions in 15 minutes?
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