H12-222 Online Practice Questions and Answers

Which of the following protocols can be associated with BFD? (Multiple Choice)

A. VRRP

B. OSPF

C. BGP

D. Static route

When the stateful inspection firewall forwards subsequent data packets (non-first packet), which of following table is used for forwarding?

A. Routing table

B. MAC address table

C. Session table

D. FIB table

Which of the following statements regarding the IntServ model is false?

A. RSVP is used to transmit signaling of QoS requests, notifying the router of QoS requirements of the application.

B. It provides guaranteed bandwidth and delay to meet requirements of the application.

C. It can provide a load control service, to ensure that even in the case of network overload, can provide services similar to the network which is not overloaded, that is, in the case of network congestion, this model ensures that packets of some applications can be processed with the low delay.

D. In this model, the network maintains the status of each flow (IP addresses and port numbers of source and destination ends), and based on this state packets are classified, policed, queued, and scheduled, meeting application requirements.

A MPLS packet contains the TTL field. On a network shown in the following figure, what are the TTL values in the MPLS packet and IP packet sent from SWB to SWC?

A. 255, 9

B. 254, 10

C. 10, 10

D. 254, 9

A TCP connection must be established before LDP session establishment, and the initiator and responder will be selected before a TCP connection is established. On the network shown in the following figure, which devices will be selected as the TCP initiator? (Multiple Choice)

A. If the Hello message does not carry the transport address, SWA initiates a TCP connection.

B. If the Hello message does not carry the transport address, SWB initiates a TCP connection.

C. If the Hello message carries the transport address, the device with a greater transport address initiates a TCP connection.

D. If the Hello message carries the transport address, the device with a smaller transport address initiates a TCP connection.

A DHCP server may use different address ranges to allocate IP addresses to clients. Which of the following statements regarding address allocation are true? (Multiple Choice)

A. IP address that is statically bound with the MAC address of a client in the database of the DHCP sever.

B. IP address that has been allocated to the client, that is, the IP address in the Requested IP Addr Option of the DHCP Discover packet sent by the client.

C. First available IP address found by the server in the DHCP address pool. On the DHCP server query Expired and conflicting IP addresses, if you find an available IP address, you can assign.

D. IP address that once conflicts with the IP address of another client.

What is the characteristic of the packet filtering firewall?

A. As the ACL complexity and length increase, the firewall filtering performance deteriorates exponentially.

B. Static ACL rules cannot adapt to dynamic security filtering requirements.

C. It is easy for hackers muddle through without check the session state and analyze the data;

D. It can fully control network information exchange, and Session control is of high security.

When the IP address of an interface on a firewall is pinged/ ping packets are processed by the internal module of the firewall but are not forwarded,

A. TRUE

B. FALSE

Which of the following statements regarding the DSCP priority is false?

A. The first 6 bits of the ToS field (leftmost 6 bits) mark different types of services, namely, DSCP priority.

B. The DSCP priority can be used to classify traffic into 32 types.

C. Each DSCP priority corresponds to a Behavior Aggregate (BA), and a PHB can be specified for each BA.

D. You can use some QoS mechanisms to implement PHB.

What are the common queue scheduling technologies? (Multiple Choice)

A. FIFO

B. LR

C. WRR

D. CIR

E. CQ

F. WFQ