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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. One bit at a time over a single channel
Wide Area Network
Integrated Services Digital Network (ISDN)
High-Level Data Link Control (HDLC) protocol
serial transmission
2. A point-to-point protocol used on leased lines
Leased lines
The layer 2 frame types are not compatible
Integrated Services Digital Network (ISDN)
High-Level Data Link Control (HDLC) protocol
3. To transport layer 3 packets across a Data Link layer point-to-point link
High-Level Data Link Control (HDLC) protocol
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
Point-to-Point Protocol
4. Protocol stack is specified at the Physical and Data Link layers only
serial transmission
Point-to-Point Protocol (PPP)
Customer premises equipment (CPE)
Link establishment phase
5. Uses the LCP (Link Control Protocol) to build and maintain data link connections
Encapsulation ppp
Authentication phase
Point-to-Point Protocol (PPP)
Toll network
6. Used with ISDN at the Data Link layer (layer 2) as a protocol for the D (signaling) channel
Link Access Procedure - D-Channel (LAPD)
Supplied by the CSU/DSU
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
7. 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
Circuit switching
Frame Relay
HDLC - Frame Relay - PPP
8. Which type of port on a router is used for a T1?
Password Authentication Protocol (PAP)
Serial
Username todd password cisco
The layer 2 frame types are not compatible
9. 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 - LCP - NCP
High-Level Data Link Control
High-Level Data Link Control (HDLC)
High-Level Data Link Control (HDLC) protocol
10. Uses MD5 challange/response
Challenge Handshake Authentication Protocol (CHAP)
Frame Relay
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Frame Relay
11. What does PPP mean?
Point-to-Point Protocol
Supplied by the CSU/DSU
LCP
High-Level Data Link Control (HDLC) protocol
12. Write the command to see the encapsulation method on serial 0 of a Cisco router
Link establishment phase
Demarcation point
Show interface serial 0
Frame Relay
13. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
Point-to-Point Protocol (PPP)
HDLC - PPP - and Frame Relay
Demarcation point
It is Cisco proprietary
14. A set of digital services that transmit voice and data over existing phone lines
Integrated Services Digital Network (ISDN)
Frame Relay
High-Level Data Link Control (HDLC)
Leased lines
15. Physical layer international standard for serial communication
Link establishment phase
DCE network
High-Level Data Link Control (HDLC) protocol
EIA/TIA-232-C - V.24 - V.35 - and ISDN
16. Which of that following is a packet-switching encapsulation?
Frame Relay
LAPD
Central office (CO) or point of presence (POP)
Network control Protocol (NCP)
17. Which protocol in PPP is used to identify the routed protocols?
NCP
HDLC
Serial
Integrated Services Digital Network (ISDN)
18. To connect two DTE networks together through a DCE network
Point-to-Point Protocol (PPP)
Local loop
Wide Area Network (WAN)
Serial
19. Proprietary
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
LAPD
Point-to-Point Protocol (PPP)
20. Which Data Link encapsulation can be used if you have one free serial interface and many remote offices to connect?
Asynchronous Transfer Mode (ATM)
Point-to-Point Protocol (PPP)
Frame Relay
It is Cisco proprietary
21. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?
HDLC
Link establishment - Authentication phases (optional) - Network layer protocol phase
Encapsulation ppp
Customer premises equipment (CPE)
22. Which PPP protocol provides link establishment?
Point-to-Point Protocol (PPP)
Username todd password cisco
Encapsulation ppp
LCP
23. Which are considered WAN connection types? (Choose three.)
Packet Switching - Circuit Switching - Leased Lines
Network control Protocol (NCP)
Point-to-Point Protocol (PPP)
Config t - interface serial 0 - encapsulation ppp
24. Equipment that's owned by the subscriber and located on the subscriber's premises
LAPD
Customer premises equipment (CPE)
Frame Relay
Point-to-Point Protocol
25. HDLC stands for what?
High-Level Data Link Control
LCP
data terminal equipment (DTE)
Demarcation point
26. 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
Encapsulation ppp
Password Authentication Protocol (PAP)
Integrated Services Digital Network (ISDN)
Leased lines
27. The spot where the service provider's responsibility ends and the CPE begins
Demarcation point
Packet switching
Wide Area Network (WAN)
Show interface serial 0
28. What are common Data Link WAN encapsulations?
HDLC - Frame Relay - PPP
Link establishment - Authentication phases (optional) - Network layer protocol phase
HDLC - PPP - and Frame Relay
LCP
29. This point connects the customers to the provider's switching network
Packet Switching - Circuit Switching - Leased Lines
Central office (CO) or point of presence (POP)
High-Level Data Link Control (HDLC)
Point-to-Point Protocol (PPP)
30. 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)
High-Level Data Link Control (HDLC) protocol
serial transmission
It is Cisco proprietary
31. What is a good command to verify your serial interface on a router?
Show interface
Wide Area Network
Link Access Procedure - D-Channel (LAPD)
Frame Relay
32. Which of the following protocols are used with ISDN as an out-of-band protocol?
Frame Relay
Link Access Procedure - Balanced (LAPB)
Customer premises equipment (CPE)
LAPD
33. Write the commands to configure s0 to PPP encapsulation
Config t - interface serial 0 - encapsulation ppp
Show interface serial 0
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC)
34. Data Link and Physical layer specification that provides high performance; successor to X.25
Network layer protocol phase
Demarcation point
Frame Relay
High-Level Data Link Control (HDLC) protocol
35. If you have a T1 - what must you connect from your router to a demarc?
Frame Relay
CSU/DSU
Frame Relay
PAP and CHAP
36. Uses cells instead of packets that are a fixed 53 bytes long; can use isochronous clocking (external clocking) to help the data move faster; provides simultaneous transmission of voice - video - and data
Challenge Handshake Authentication Protocol (CHAP)
Show interface serial 0
HDLC
Asynchronous Transfer Mode (ATM)
37. What is the reason why the serial link between the Corp router and the Remote router will not come up?
The layer 2 frame types are not compatible
data terminal equipment (DTE)
CSU/DSU
Customer premises equipment (CPE)
38. If required - either CHAP or PAP can be used to authenticate a link
Demarcation point
Packet Switching - Circuit Switching - Leased Lines
Point-to-Point Protocol (PPP)
Authentication phase
39. Network Control Protocol (NCP) is used to allow multiple Network layer protocols (routed protocols) to be used on a point-to-point connection
Link establishment phase
Point-to-Point Protocol (PPP)
PAP and CHAP
Challenge Handshake Authentication Protocol (CHAP)
40. 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)
Frame Relay
DCE network
HDLC - PPP - and Frame Relay
Frame Relay
41. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router
serial transmission
Circuit switching
DCE network
Username todd password cisco
42. What are the two PPP authentication methods?
EIA/TIA-232-C - V.24 - V.35 - and ISDN
PPP - HDLC - Frame Relay
Point-to-Point Protocol (PPP)
PAP and CHAP
43. Method for encapsulating datagrams over serial links
Leased lines
Packet switching
Link Access Procedure - Balanced (LAPB)
High-Level Data Link Control (HDLC)
44. What is the default serial encapsulation on a Cisco router?
High-Level Data Link Control (HDLC)
PAP and CHAP
HDLC
Link establishment phase
45. 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
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
PAP and CHAP
Circuit switching
46. LCP packets are sent by each PPP device to configure and test the link
It is Cisco proprietary
HDLC - Frame Relay - PPP
High-Level Data Link Control (HDLC) protocol
Link establishment phase
47. If you had one serial interface on your router and needed to connect many remote locations - which Data Link encapsulation should you use?
Challenge Handshake Authentication Protocol (CHAP)
Frame Relay
Link Control Protocol (LCP)
High-Level Data Link Control (HDLC) protocol
48. 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
Packet switching
Network control Protocol (NCP)
Frame Relay
The layer 2 frame types are not compatible
49. Designed to allow the simultaneous use of multiple Network layer protocols
Link Control Protocol (LCP)
High-Level Data Link Control (HDLC) protocol
serial transmission
Network control Protocol (NCP)
50. Method of establishing and configuring different Network layer protocols
Network control Protocol (NCP)
High-Level Data Link Control (HDLC) protocol
Circuit switching
High-Level Data Link Control (HDLC) protocol