Wide Area Networks Questions and Answers

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Q11
Which of the following describes the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols?
  • A HDLC
  • B Cable
  • C VPN
  • D IPSec
Answer: Option C
Q12
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?
  • A HDLC
  • B Cable
  • C VPN
  • D IPSec
Answer: Option D
Q13
Which of the following uses ATM as the Data Link layer protocol that's terminated at what's known as the DSLAM?
  • A DSL
  • B PPPoE
  • C Frame Relay
  • D Dedicated T1
Answer: Option A
Q14
When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the clock rate determined?
  • 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
Answer: Option A
Q15
Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational?
  • A frame-relay arp
  • B frame-relay map
  • C frame-relay interface-dci
  • D frame-relay lmi-type
Answer: Option B
Q16
How should a router that is being used in a Frame Relay network be configured to keep split horizon issues from preventing routing updates?
  • A Configure a separate subinterface for each PVC with a unique DLCI and subnet assigned to the subinterface.
  • B Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic.
  • C Configure many subinterfaces in the same subnet.
  • D Configure a single subinterface to establish multiple PVC connections to multiple remote router interfaces.
Answer: Option A
Q17
Which of the following encapsulates PPP frames in Ethernet frames and uses common PPP features like authentication, encryption, and compression?
  • A PPP
  • B PPPoA
  • C PPPoE
  • D Token Ring
Answer: Option C

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