QoS can provide different quality of service according to different demands, which of the following are functions of QoS? (Choose three.)

Providing private bandwidth for users

Congestion management and avoidance

Providing private bandwidth for users

Congestion management and avoidance

Which of the following statements about the VRRP authentication is false?

VRRP provides the RSA key authentication.

VRRP provides no authentication.

VRRP provides the simple text authentication.

VRRP provides the MD5 authentication.

VRRP provides the RSA key authentication.

Which of the following statements about the mVRRP backup group is false?

An mVRRP backup group can serve as a service VRRP backup group and thus be bound to another mVRRP backup group.

Multiple service VRRP backup group can be bound to one mVRRP backup group.

An mVRRP backup group can serve as a service VRRP backup group and thus be bound to another mVRRP backup group.

One service VRRP backup group can be bound to only one mVRRP backup group.

After multiple service VRRP backup groups are bound to an mVRRP backup group, the mVRRP backup group determines the status of all the service VRRP backup groups by sending VRRP packets. This can reduce the number ofVRRP packets to be sent and improve the packet processing efficiency.

Which of the following information in a packet can be marked or re-marked?

IP DSCP, IP precedence, and 802.1p information

IP source and destination addresses

Ethernet0/0 of RTA and Ethernet0/0 of RTB connect to the same LAN, both are enabled with VRRP. Create a virtual router with ID 1 and virtual IP address 10.1.1.254. Which of the following commands can make RTB Master without modifying the priority of RTA?

[RTB-Ethernet0/0]vrrpvrid 1 priority 200

[RTB-Ethernet0/0]vrrpvrid 1 virtual-ip 10.1.1.254 priority 200

[RTB-Ethernet0/0]vrrpvrid 1 force-master

Which of the following statements about a backup router in a VRRP backup group are true? (Choose three.)

It receives VRRP packets from the master router and determines whether the master router is functioning properly.

It discards an IP packet whose destination MAC address is a virtual MAC address.

It discards an IP packet whose destination IP address is a virtual IP address.

It receives VRRP packets from the master router and determines whether the master router is functioning properly.

It responds to the ARP requests sent from a virtual IP address.

It discards an IP packet whose destination MAC address is a virtual MAC address.

It discards an IP packet whose destination IP address is a virtual IP address.

Which of the following statements about the mVRRP backup group are true? (Choose three.)

An mVRRP backup group can be bound to other service VRRP backup groups.

After a VRRP backup group member is bound to an mVRRP backup group, the state machine of the VRRP backup group member becomes dependent. That is, the VRRP backup group member deletes the protocol timer, and no longersends or receives packets, and implements its state machine by directly copying the status of the mVRRP backup group.

A VRRP backup group member can be bound to only one mVRRP backup group.

An mVRRP backup group can be bound to other service VRRP backup groups.

An mVRRP backup group cannot be bound to multiple service VRRP backup groups but can function as a service VRRP group to be bound to another mVRRP group.

After a VRRP backup group member is bound to an mVRRP backup group, the state machine of the VRRP backup group member becomes dependent. That is, the VRRP backup group member deletes the protocol timer, and no longersends or receives packets, and implements its state machine by directly copying the status of the mVRRP backup group.

A VRRP backup group member can be bound to only one mVRRP backup group.

Which of the following statement about the jitter and delay is false?

The jitter is independent of the delay.

The jitter depends on the delay.

The variation in packet delay is called jitter.

The lower the delay is, the less the jitter is.

The jitter is independent of the delay.

Which of the following statements are correct regarding default gateway of PC in the network running VRRP?

Configure only one gateway for the PC which is the IP address of virtual router.

Configure only one gateway for the PC which is the IP address of Master.

Configure only one gateway for the PC which is the IP address of virtual router.

Configure two gateways for the Pc which are the IP addresses of Master and Slave.

Configure three gateways for the PC which are the IP addresses of Master, Slave and virtual router.

Which of the following statements about the device state change is correct after failure in the intermediate link for transmitting VRRP heartbeats?

Both the master and slave devices enter the Master state.

The status of the master and salve devices remains unchanged.

Both the master and slave devices enter the Master state.

Both the master and slave devices enter the Slave state.

Both the master and slave devices enter the Initial state.

Which of the following statements about the master router in a VRRP backup group are true? (Choose three.)

It regularly sends VRRP packets.

It uses a virtual MAC address to respond to ARP requests sent from a virtual IP address.

It changes to the Backup state if the priority carried in the received packet is greater than its own priority.

It regularly sends VRRP packets.

It uses a virtual MAC address to respond to ARP requests sent from a virtual IP address.

It forwards an IP packet whose destination MAC address is a physical MAC address.

It changes to the Backup state if the priority carried in the received packet is greater than its own priority.

Traffic shaping uses queues to cache traffic whose transmission rate exceeds the limit. Which of the following statement about traffic shaping is not true?

In case of congestion, traffic shaping causes the packet loss ratio to increase.

Compared with traffic policing, traffic shaping is advanced in terms of caching burst traffic.

With traffic shaping, packets can be transmitted at an even rate.

Caching packets in the queue increases the packet delay in case of congestion.

In case of congestion, traffic shaping causes the packet loss ratio to increase.

Which of the following statements are correct regarding VRRP?

Only Master can process the data packets sending to virtual router.

Only Slave can process the data packets sending to virtual router.

Both Master and Slave can process the data packets sending to the same virtual router to realize load balance.

By default, only Master can process the data packets sending to virtual router; but we can do some configuration to make the Slave process the data packets sending to virtual router.

Which of the following statement about QoS in DiffServ mode is false?

Before sending packets, the application program needs to confirm that the network has reserved resources for packet transmission.

The parameter field in the IP packet header informs devices on the network of the QoS requirements of the application.

Every device on the packet transmission paths can learn the service request types by analyzing the IP packet header.

Before sending packets, the application program needs to confirm that the network has reserved resources for packet transmission.

DiffServ is a QoS solution based on packets.

Which of the following statement about packet marking is false?

The IP address of the packet can be marked.

TheQosInfo field of the packet can be marked.

The DSCP and IP precedence fields of the IP packet can be marked.

The 802.1p field of the VLAN packet can be marked.

The IP address of the packet can be marked.

Huawei H12-224 Practice Test 7 - Free Online Exam Prep & Questions

Which of the following are disadvantages of the traditional tail drop mechanism? (Choose three.)

TCP global synchronization

TCP starvation

High Average Link Utilization

Packet drop is not based on priorities

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