Constructing Secure optimized WANs v2.0 (GB0-391) Free Practice Test

Question 1

On what device in the MPLS network does the MPLS forwarding medium voltage label ( PUSH ) operation occur ?

A. On all devices of the MPLS network

B. The packet leaves the MPLS network address LER on device

C. The packet enters the MPLS network at the LER on device

D. On all LSR devices in the middle of the MPLS network

Correct Answer: C

Question 2

IP header ToS field provides a ______ one IP Precedence priority.

A. 8

B. 16

C. 32

D. 64

Correct Answer: A

Question 3

Which of the following descriptions about GRE VPN configuration is correct is ____ .( Choose one or more )

A. with home GRE VPN when, regardless of static routing or dynamic routing, the Tunnel interfaces should start Keepalive function, to detect the actual work of the tunnel interface

B. lack of provincial case, the Tunnel Interface packet encapsulation mode as GRE

C. After the keepalive function is enabled on the tunnel interface , by default, once the router fails to receive the keepalive message from the other party for three times , the tunnel is considered unavailable

D. Tunnel source address and a destination address uniquely identifies an interface of a tunnel, at the ends of the tunnel Tunnel source address and destination address from the interface must be the same

Correct Answer: B,C

Question 4

The following VPN technology, belonging to the second layer of VPN are ____ .( Choose one or more )

A. GRE VPN

B. VLL

C. IPSec VPN

D. VPLS

Correct Answer: B,D

Question 5

The information displayed on the MSR router is as follows:
acl number 2000
rule 0 permit source 192.168.0.0 0.0.0.255
acl number 2002
rule 0 permit source 192.168.2.0 0.0.0.255
#
traffic classifier 2 operator and
if-match acl 2002
traffic classifier 1 operator and
if-match acl 2000
#
traffic behavior 2
queue af bandwidth pct 30
traffic behavior 1
queue ef bandwidth pct 30 cbs-ratio 25
#
qos polic test
classifier 1 behavior 1
classifier 2 behavior 2
#
interface GigabitEthernet0/1
port link-mode route
duplex full
speed 10
ip address 192.168.1.1 255.255.255.0
qos appl polic test outbound
When the traffic rate of the packets with the source addresses of 192.168.0.2 , 192.168.2.2 , and 192.168.3.2 are 4Mbps , 4Mbps , 6Mbps , and no other background traffic is forwarded from port G0/1_ .Then the following statement is correct _____

A. The forwarding rate of packets with the source address of 192.168.0.2 is about 2.4Mbps

B. The forwarding rate of packets with the source address of 192.168.0.2 is about 3Mbps

C. The forwarding rate of packets with the source address of 192.168.2.2 is about 2.4Mbps

D. The forwarding rate of packets with the source address of 192.168.2.2 is about 3Mbps

E. The forwarding rate of packets with the source address of 192.168.2.2 is about 4Mbps

F. The forwarding rate of packets with the source address of 192.168.0.2 is about 4Mbps

Correct Answer: B,D,E,F

Question 6

The factors that affect VoIP voice quality include ____ .

A. selected encoding type used

B. Packet loss on IP network

C. selected by signaling type

D. back sound

Correct Answer: A,B,D

Question 7

The interconnection between ordinary telephones, PBX and other equipment has a unified interface standard, including analog and digital interfaces.The following are digital voice interfaces.

A. POS

B. FXS

C. E1

D. T1

Correct Answer: C,D

Question 8

As shown in the figure, the configurations of the two security gateways are:
RTA
[RTA] ike peer 123
[RTA-ike-peer-123] pre-shared-ke simple 123
[RTA-ike-peer-123] remote-address 10.2.1.2
[RTA-ike-peer-123] local-address 10.2.1.1
[RTA-ike-peer- 123] quit
[RTA] ipsec proposal 1
[RTA -ipsec-proposal-1] quit
[RTA]acl number 3000
[RTA-acl-adv-3000] rule 0 permit ip source 10.1.1.0 0.0.0.255 destination 10.3.1.0 0.0.0.255
[RTA]ipsec polic 1 1 isakmp
[RTA-ipsec-polic-isakmp-1-1] securit acl 3000
[RTA-ipsec-polic-isakmp-1-1] ike-peer 123
[RTA-ipsec-polic-isakmp-1-1] proposal 1
[RTA-ipsec-polic-isakmp-1-1] quit
[RTA] interface Serial0/2/1
[RTA-Serial0/2/1] ip address 10.2.1.1 255.255.255.0
[RTA-Serial0/2/1] ipsec polic 1
[RTA] interface Ethernet 0/1/0
[RTA-Serial0/2/1] ip address 10.1.1.2 255.255.255.0
RTB:
[RTB] ike peer 123
[RTB-ike-peer-123] pre-shared-ke simple 123
[RTB-ike-peer-123] remote-address 10.2.1.1
[RTB-ike-peer-123] local-address 10.2.1.2
[RTB-ike-peer-123]quit
[RTB] ipsec proposal 1
[RTB-ipsec-proposal-1] quit
[RTB]acl number 3000
[RTB-acl-adv-3000] rule 0 permit ip source 10.1.1.0 0.0.0.255 destination 10.3.1.0.0.0.0.255
[RTB]ipsec polic 1 1 isakmp
[RTB-ipsec-polic-isakmp-1-1] securit acl 3000
[RTB-ipsec-polic-isakmp-1-1] ike-peer 123
[RTB-ipsec-polic-isakmp-1-1] proposal 1
[RTB -ipsec-polic-isakmp-1-1] quit
RTB] interface Serial0/2/1
[RTB-Serial0/2/1] ip address 10.2.1.2 255.255.255.0
[RTB-Serial0/2/1]]ipsec polic 1
[RTA] interface Ethernet 0/1/0
[RTA-Serial0/2/1] ip address 10.1.3.1 255.255.255.0
This shows that ______ .

A. Only there from RTB to RTA launched the SA negotiation can succeed

B. any any party initiated SA negotiation can not succeed

C. either any party initiated SA negotiation can be successful

D. Only there from the RTA to RTB launch of SA negotiation can succeed

Correct Answer: B

Question 9

BGP MPLS VPN group network, private network packets from the CE side into the PE the device , PE how to determine the packet belongs to VPN_______ .

A. Root , according to the message carried by private label judge

B. root according to the packet's source IP address is determined

C. root according to the purpose of the packet IP address determination

D. root data message into the PE device interface belongs to VPN Analyzing

Correct Answer: D

Welcome to TestSimulate

H3C Constructing Secure optimized WANs v2.0 (GB0-391) Free Practice Test