4A0-100 試験問題を無料オンラインアクセス

Which of the following statements about IP filters on a Nokia 7750 SR is TRUE?

• A.Multiple ingress IP filters can be used on a single interface.
• B.The same IP filter can be used on multiple interfaces.
• C.An IP filter can be applied to the management port.
• D.Only one IP filter can be defined per router.

Which of the following statements are TRUE regarding SONET/SDH? (Choose two.)

• A.IP datagrams are encapsulated in a PPP frame for transmission over an SDH network,
• B.IP datagrams are encapsulated in an Ethernet frame for transmission over a SONET network.
• C.They are deployed over point-to-point physical topologies to allow sub-50ms convergence.
• D.An ADM (Add Drop Multiplexer) is used to connect various sites to the infrastructure.

What must the sender do when it receives a window size of 0 from the receiver?

• A.Stop transmitting.
• B.Retransmit the previous segment.
• C.Terminate the TCP session.
• D.Send the next segment.

How does a VPRN service avoid the problem of overlapping IP addresses from different customers?

• A.A VPRN translates customer IP addresses to a private addressing scheme administered by the service provider.
• B.A VPRN ignores IP addressing information and uses MAC addressing instead, which are always unique.
• C.Each VPRN service maintains a separate VPN routing and forwarding instance to separate customer routing information. This allows for overlapping addresses.
• D.You cannot have overlapping IP addresses. Customers must change their IP address assignment.

Network 201.148.104.0/21 is subnetted using a /23 mask. How many subnets and host addresses per subnet will be obtained with this mask?

• A.4 subnets, 512 hosts
• B.2 subnets, 1022 hosts
• C.4 subnets, 510 hosts
• D.2 subnets, 2048 hosts