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- Question
Which of the following describes the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols?
Options- A. HDLC
- B. Cable
- C. VPN
- D. IPSec
- E. xDSL
- Correct Answer
- VPN
ExplanationA allows the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols. A VPN can be set up across any type of link. - 1. Which of the following describes an industry-wide standard suite of protocols and algorithms that allows for secure data transmission over an IP-based network that functions at the layer 3 Network layer of the OSI model?
Options- A. HDLC
- B. Cable
- C. VPN
- D. IPSec
- E. xDSL Discuss
- 2. When setting up Frame Relay for point-to-point subinterfaces, which of the following must not be configured?
Options- A. The Frame Relay encapsulation on the physical interface
- B. The local DLCI on each subinterface
- C. An IP address on the physical interface
- D. The subinterface type as point-to-point Discuss
- 3. In which of the following technologies is the term HFC used?
Options- A. DSL
- B. PPPoE
- C. Frame Relay
- D. Dedicated T1 Discuss
- 4. Which WAN encapsulations can be configured on an asynchronous serial connection?
- PPP
- ATM
- HDLC
- SDLC
- Frame Relay
Options- A. 1 and 2
- B. 2 and 4
- C. 3, 4 and 5
- D. All of the above Discuss
- 5. Which encapsulations can be configured on a serial interface?
- Ethernet
- Token Ring
- HDLC
- Frame Relay
- PPP
Options- A. 1 and 4
- B. 2 only
- C. 3, 4 and 5
- D. All of the above Discuss
- 6. You need to configure a router for a Frame Relay connection to a non-Cisco router. Which of the following commands will prepare the WAN interface of the router for this connection?
Options- A. Router(config-if)#encapsulation frame-relay q933a
- B. Router(config-if)#encapsulation frame-relay ansi
- C. Router(config-if)#encapsulation frame-relay ietf
- D. Router(config-if)#encapsulation frame-relay cisco Discuss
- 7. Which of the following encapsulates PPP frames in Ethernet frames and uses common PPP features like authentication, encryption, and compression?
Options- A. PPP
- B. PPPoA
- C. PPPoE
- D. Token Ring Discuss
- 8. Which of the following uses ATM as the Data Link layer protocol that's terminated at what's known as the DSLAM?
Options- A. DSL
- B. PPPoE
- C. Frame Relay
- D. Dedicated T1
- E. Wireless Discuss
- 9. Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational?
Options- A. frame-relay arp
- B. frame-relay map
- C. frame-relay interface-dci
- D. frame-relay lmi-type Discuss
- 10. When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the clock rate determined?
Options- A. Supplied by the CSU/DSU
- B. By the far end router
- C. By the clock rate command
- D. By the Physical layer bit stream timing Discuss
Wide Area Networks problems
Search Results
Correct Answer: IPSec
Explanation:
IPSec is an industry-wide standard suite of protocols and algorithms that allows for secure data transmission over an IP-based network that functions at the layer 3 Network layer of the OSI model.
Correct Answer: An IP address on the physical interface
Explanation:
It is very important to remember when studying the CCNA exam objectives, and when configuring Frame Relay with point-to-point subinterfaces, that you do not put an IP address on the physical interface.
Correct Answer: Dedicated T1
Explanation:
In a modern network, hybrid fibre-coaxial (HFC) is a telecommunications industry term for a network that incorporates both optical fiber and coaxial cable to create a broadband network.
Correct Answer: 1 and 2
Explanation:
Please do not freak out because ATM is an answer to this question. ATM is not covered in depth on the CCNA exam. PPP is mostly used for dial-up (async) services, but ATM could be used as well, though it typically is not used anymore since PPP is so efficient.
Correct Answer: 3, 4 and 5
Explanation:
Ethernet and Token Ring are LAN technologies and cannot be configured on a serial interface. PPP, HDLC, and Frame Relay are layer 2 WAN technologies that are typically configured on a serial interface.
Correct Answer: Router(config-if)#encapsulation frame-relay ietf
Explanation:
If you have a Cisco router on one side of a Frame Relay network and a non-Cisco router on the other side, you would need to use the Frame Relay encapsulation type of IETF. The default is Cisco encapsulation, which means that a Cisco router must be on both sides of the Frame Relay network.
Correct Answer: PPPoE
Explanation:
PPPoE encapsulates PPP frames in Ethernet frames and uses common PPP features like authentication, encryption, and compression. PPPoA is used for ATM.
Correct Answer: DSL
Explanation:
ATM is the Data-Link layer protocol that's typically used over the DSL layer 1 connection from the CPE and terminated at what's known as the DSLAM-an ATM switch that contains DSL interface cards, or ATU-Cs.
Correct Answer: frame-relay map
Explanation:
If you have a router in your Frame Relay network that does not support IARP, you must create Frame Relay maps on your router, which provide known DLCI-to-IP address mappings.
Correct Answer: Supplied by the CSU/DSU
Explanation:
Clocking on a serial interface is always provided by the CSU/DSU (DCE device). However, if you do not have a CSU/DSU in your nonproduction test environment, then you need to supply clocking with the
clock rate command on the serial interface of the router with the DCE cable attached.
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