Which of the following statements are TRUE regarding SONET/SDH? (Choose 2)
A. They are deployed over point-to-point physical topologies to allow sub-50ms convergence.
B. An ADM (Add Drop Multiplexer) is used to connect various sites to the infrastructure.
C. IP datagrams are encapsulated in a PPP frame for transmission over an SDH network,
D. IP datagrams are encapsulated in an Ethernet frame for transmission over a SONET network.
Which answer reflects the correct message sequence used when a source attempts to ping a destination for which it has no Address Resolution Protocol (ARP) cache entry?
A. ICMP echo request, ARP request, ARP reply, ICMP echo reply
B. ARP request, ARP reply, ICMP echo request, ICMP echo reply
C. ICMP echo request, ICMP echo reply, ARP request, ARP reply
D. ICMP echo request. ARP reply, ARP request, ICMP echo reply
Which of the following SAP types can be associated to a VPWS? (Choose 3)
A. Ethernet
B. ATM
C. Token Ring
D. Frame Relay
Which of the following statements are TRUE about the Nokia SR 7750? (Choose 2)
A. It can boot without a compact flash in the CF3 slot.
B. It cannot boot without a compact flash in the CF3 slot.
C. It can operate without a compact flash in the CF3 slot once it has booted.
D. It cannot operate without a compact flash in the CF3 slot once it has booted.
What is the basic unit of framing in SDH and the bit rate for transmission?
A. STM-1 with a bit rate of 1.544 Mbit/s.
B. STM-1 with a bit rate of 2.048 Mbit/s.
C. STM-1 with a bit rate of 51.84 Mbit/s.
D. STM-1 with a bit rate of 155.52 Mbit/s.
Which of the following protocols belongs to the OSI suite of protocols? (Choose 2)
A. OSPF
B. BGP
C. X.500
D. IS-IS
E. Ethernet
Which of the following is TRUE regarding Ethernet half-duplex transmission?
A. Half-duplex transmission is less efficient because the frame MTU is smaller.
B. An end-station connected to a hub will always be half-duplex.
C. Ethernet switches only support half-duplex transmission.
D. All of the above.
Public IP addresses are globally coordinated by which organization?
A. Network Solutions INC
B. IANA
C. IETF
D. ITU-T
E. IEEE
Which of the following statements is TRUE regarding a VPWS service?
A. VPWS is a point-to-multipoint service.
B. VPWS requires MAC learning in order to forward frames to the correct destination
C. A Spanning Tree Protocol must be enabled when deploying a VPWS.
D. VPWS treats multicast traffic similar to unicast traffic.
Which of the following best describes a repeater?
A. A passive device simply used to connect two or more cables. It does not generate or amplify any signals.
B. A device that receives and retransmits a signal out its ports but does not do any Layer 2 analysis of the data.
C. A device that receives a signal and based on the Layer 2 destination address, makes a decision on which ports the signal should be retransmitted.
D. A device that receives a signal and based on the Layer 3 destination address makes a decision on which ports the signal should be retransmitted.
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