Source Specific Multicast (SSM)is being used throughput the HW IP Multicast network. Which of the following three statements about SSM are true? (Choose three.)

SSM uses Shortest-Path Trees Only

There are no RPs to worry about

SSM is best suited for applications that are of one-to-many category

SSM uses Shortest-Path Trees Only

There are no RPs to worry about

SSM is best suited for applications that are of the Many-to-Many category

The use of SSM is recommended when there are many sources and it is desirable to keep the amount of mroute state in the routers in the network to a minimum.

SSM is best suited for applications that are of one-to-many category

The default SSM group address range is 232.0.0.0/8. Which of the following configurations can be performed to modify the SSM group address range?

Run the ssm-policy basic-acl-number command in the PIM view to configure the SSM group address range

Run the ssm-policy advanced-acl-number command in the system view to configure the SSM group address range

Run the ssm-policy basic-acl-number command in the system view to configure the SSM group address range

Run the ssm-policy advanced-acl-number command in the PIM view to configure the SSM group address range

Run the ssm-policy basic-acl-number command in the PIM view to configure the SSM group address range

Routers HW1 and HW2 are IP Multicast routers. These routers use (S, G) entries for multicast packet forwarding. Which of the following address types are used in the "S" entry?

Any class A, Class B, or Class C host address

The block of administratively scoped multicast addresses

Source Specific multicast addresses

Any class A, Class B, or Class C host address

Which of the following are differences between PIM-SM and PIM-DM? (Multiple Choice)

BSRs/RPs exist only on a PIM-SM network, not on a PIM-DM network

PIM-SM is applicable to a network with few receivers; PIM-DM is applicable to a network with a larger number of receivers

Whether in PIM-SM or PIM-DM mode, receiver hosts must join multicast groups through IGMP

PIM-SM has RPTs and SPTs but PIM-DM has only RPTs

BSRs/RPs exist only on a PIM-SM network, not on a PIM-DM network

PIM-SM is applicable to a network with few receivers; PIM-DM is applicable to a network with a larger number of receivers

Whether in PIM-SM or PIM-DM mode, receiver hosts must join multicast groups through IGMP

The HW network consists of Network A and B that are connected via Router HW1 and Router HW2. The HW network is shown in the following exhibit. To set up an IPSec VPN between routers HW1 and HW2, which of the following crypto access-lists must be configured on Router HW1 in order to send LAN to LAN traffic across the encrypted VPN tunnel?

rule permit ip source 10.1.1.0 0.0.0.255 destination 10.1.2.0 0.0.0.255

rule permit ip source 10.1.2.0 0.0.0.255 destination 10.1.1.0 0.0.0.255

rule permit ip source 10.1.1.0 0.0.0.255 destination 192.168.1.2 0

rule permit ip source 198.168.1.1 0 destination 192.168.1.2 0

rule permit ip source 10.1.1.0 0.0.0.255 destination 10.1.2.0 0.0.0.255

rule permit ip source 192.168.1.1 0 destination 10.1.2.0 0.0.0.255

Which of the following lists, in the correct order, the protocols that use TCP ports 443, 179, 137, 110, and 23?

HTTPS, BGP, NetBios Name Server, POP3, Telnet

Finger, DHCP Server, NetBios Name Server, POP3, Telnet

Which of the following statements are false about Weighted Round Robin (WRR)? (Multiple Choice)

WRR prevents congestion on the network

WRR cannot be used on gigabit-ethernet interfaces

WRR is a congestion management technology

WRR prevents congestion on the network

WRR ensures important traffic being forwarded first

WRR ensures that all queues being serviced

WRR cannot be used on gigabit-ethernet interfaces

Which of the following are functions of Random Early Discard (RED)?

Avoiding global synchronization for TCP traffic

Performs rate limiting on the specified data traffic

Ensuring that high priority traffic gets sent first

Preventing starvation in lower priority queues

Which of the following statements is false about the DSCP field?

When the DSCP value is EF, data is forwarded in expedited forwarding mode

CS in DSCP classifies data based on eight priorities

DSCP can represent the data priority as well as the packet drop probability

The DSCP value can be 0. When the value is 0, the default packet forwarding mechanism is used

You must ensure that mission critical traffic is prioritized in the HW network. The IP precedence of a packet can be determined by which of the following?

The three most significant bits of the ToS byte

The three least significant bits of the ToS byte

Bit 4, 5, and 6 of the ToS byte

Which of the following statements are true? (Multiple Choice)

SNMPv3 has privacy and uses usernames for authentication

SNMPv1 has no privacy and uses community for authentication

SNMPv2c has privacy and uses usernames for authentication

SNMPv3 has privacy and uses community for authentication

SNMPv3 has privacy and uses usernames for authentication

SNMPv1 has no privacy and uses community for authentication

SNMPv2c has privacy and uses usernames for authentication

A new Syslog server is being installed in the HW network to accept network management information. What characteristics apply to these Syslog messages?(Multiple Choice)

Its transmission is not reliable

Its transmission is not acknowledged

Its transmission is acknowledgment

Its transmission is not reliable

Its transmission is not acknowledged

Which of the following statements about VRRP load balancing are tfalse? (Multiple Choice)

When configuring priorities, you must ensure that the same router server as the master router in three VRRP backup groups

To implement load balancing, default network gateways of hosts on a LAN must be configured as IP addresses of different virtual routers

Multiple VRRP backup groups can be created on an interface of a router. The router can serve as the master router in on VRRP backup group and the backup router in other VRRP backup groups.

When configuring priorities, you must ensure that the same router server as the master router in three VRRP backup groups

To implement load balancing, default network gateways of hosts on a LAN must be configured as IP addresses of different virtual routers

Multiple VRRP backup groups can be created on an interface of a router. The router can serve as the master router in on VRRP backup group and the backup router in other VRRP backup groups.

VRRP local balancing requires that at least two virtual routers transmit services at the same time.

SWA and SWB are connected through two physical Ethernet links. SWA has the following interface configurations: The two links are aggregated.Assume that the configuration on SWB is correct. Given this information, which of the following statements are true?

GigabitEthernet1/0/1 and GigabitEthernet1/0/1 can be added to the same LAG without changing the current configurations.

After link aggregation is configured on SWA and SWB, if MSTP is enabled on them, GigabitEthernet1/0/1 and GigabitEthernet1/0/2 enter the Forwarding state in MSTP.

GigabitEthernet1/0/1 and GigabitEthernet1/0/2 can be added to the same LAG only after the configuration of GigabitEthernet1/0/2 is changed to be the same as that of GigabitEthernet1/0/1.

GigabitEthernet1/0/1 and GigabitEthernet1/0/2 cannot be added to the same LAG because the allowed VLANs are different.

Which of the following statements regarding the process of sending and receiving data frames on a port in access link-type is true?

VLAN tags are removed before data frames are sent.

Tagged data frames that are received are directly discarded.

Only untagged data frames are received.

VLAN tags are removed before data frames are sent.

A switch learns the destination MAC address in the data frames when they are received on the switch's port.

How long will a Huawei running RSTP wait before aging out the BPDUs on an interface?

BPDUs on the interface will not be aged out

Which of the following statements regarding LACP are true?

You can run the following commands to delete member interfaces from an Eth-Trunk:interface GigabitEthernet0/0/1shutdowninterface GigabitEthernet0/0/1 undo eth-trunk 1 interface GigabitEthernet0/0/1 undo shutdown

You can run the following commands to prevent frequent flapping due to physical link faults on an Eth-Trunk:interface eth-trunk 1 lacp preempt enable lacp preempt delay delay-time

You can run the following commands to add member interfaces to an Eth-Trunk:interface GigabitEthernet0/0/1 shutdown interface eth-trunk 1trunkport GigabitEthernet0/0/1 interface GigabitEthernet0/0/1 undo shutdown

You can run the following commands to enable load balancing based on source IP addresses for an Eth-Trunk:interface eth-trunk 1 load-balance src-dst-ip

Which of the following statements regarding PPPoE data frames are true?

The Session_ID field of a PPP session must be the value specified in the Discovery phase and cannot be changed.

The Ethernet_Type field has a fixed value of 0x8863.

The Session_ID field of a PPP session must be the value specified in the Discovery phase and cannot be changed.

When PPPoE is used to transmit session data, Code must be set to 0x0.

After a PPPoE session is set up, all Ethernet packets are unicast.

As shown in the figure below, R1 and R2 are connected through a PPP link, and the IP addresses on the directly connected interfaces are not on the same network segment. R1 and R2 can communicate with each other through the directly connected interfaces. However, communication on the Ethernet link fails if the IP addresses on the directly connected interfaces are on the same network segment. What are the causes of this?

R1 and R2 that are directly connected through a POS interface learn the 32-bit host route of each other through IPCP.

The Ethernet header does not need to be encapsulated into data packets between R1 and R2 that are directly connected through a POS interface, and ARP does not need be used to obtain MAC addresses.

R1 and R2 that are directly connected through a POS interface learn the MAC address of each other using LCP, and ARP does not need to be used to obtainMAC addresses.

R1 and R2 that are directly connected through a POS interface learn the 24-bit subnet route of each other through IPCP.

R1 and R2 that are directly connected through a POS interface learn the 32-bit host route of each other through IPCP.

The figure shows router data. Which of the following statements is false?

R3 is the DIS of a Level-1 link.

The system ID of R3 is 0003.0000.0000.

R3 is the DIS of a Level-1 link.

R3 is the DIS of a Level-2 link.

Which of the following configurations regarding OSPFv3 route aggregation are true?

[Huawei]ospfv3 1[Huawei-ospfv3-1]asbr-summary fc00:0:0:: 48 cost 20 tag 100

[Huawei]ospfv3 1[Huawei-ospfv3-1]abr-summary fc00:0:0:: 48 cost 400

[Huawei]ospfv3 1[Huawei-ospfv3-1]area 1[Huawei-ospfv3-1-area-0.0.0.1]abr-summary fc00:0:0:: 48 cost 400

[Huawei]ospfv3 1[Huawei-ospfv3-1]area 1[Huawei-ospfv3-1-area-0.0.0.1]asbr-summary fc00:0:0:: 48 cost 20 tag 100

[Huawei]interface gigabitethernet 1/0/0[Huawei- Gigabitethernet1/0/0]asbr-summary fc00:0:0:: 48 cost 20

If no area is divided, which of the following statements regarding the link-state routing protocol are true?

Routers in the entire routing domain have the same LSDB.

Routers in the same routing domain may repeatedly receive the same link state information.

Routers in the entire routing domain have the same LSDB.

Each router establishes a routing domain topology.

Each router learns routing entries from updated routing information and adds them to the routing table.

The router sends all link state information from a neighbor to all other neighbors to ensure data synchronization in the database.

The figure shows the topology and configuration. Which of the following methods can be used to exclude the specific route 10.0.3.3/32 from the routing table of R1?

On R1, configure a filter-policy, use the ACL applied to the filter-policy to match 10.0.3.3/32, and apply the filter-policy to the import direction.

On R2, configure a filter-policy, use the ACL applied to the filter-policy to match 10.0.3.3/32, and apply the filter-policy to the export direction.

Configure route summarization on R2 and summarize routes as 10.0.0.0/16.

On R1, configure a filter-policy, use the ACL applied to the filter-policy to match 10.0.3.3/32, and apply the filter-policy to the import direction.

Configure route summarization on R3 and summarize routes as 10.0.0.0/16.

If the Option field in the OSPFv3 Hello packet sent from GigabitEthernet0/0/0 of router A is 0x000013, which of the following statements are true?

GigabitEthernet0/0/0 of router A participates in IPv6 route calculation.

Router A supports flooding of AS-external-LSAs.

Router A is an OSPFv3 device enabled with the forwarding capability.

GigabitEthernet0/0/0 of router A belongs to an NSSA.

GigabitEthernet0/0/0 of router A participates in IPv6 route calculation.

Router A supports flooding of AS-external-LSAs.

Router A is an OSPFv3 device enabled with the forwarding capability.

As shown in the following figure, R1, R2, and R3 run OSPF and advertise their loopback interface addresses into OSPF. Which of the following statements is false?

The filter import command can be executed on R2 in Area 0 to filter loopback interface routes of R3.

The filter-policy import command can be executed on R1 to filter loopback interface routes of R3.

The filter export command can be executed on R2 in Area 1 to filter loopback interface routes of R3.

The filter-policy export command can be executed on R2 to filter loopback interface routes of R3.

Huawei H12-261 Practice Test 2 - Free Online Exam Prep & Questions

What is the class D IP address range 239.0.0.0-239.255.255.255 used for?

A.

It is a multicast address range used by routing protocols

B.

Any legal multicast data flow and multicast application can use this address segment

C.

Link-local multicast traffic mode up of network control messages meant to stay in the local subnet

D.

It is a locally scoped multicast address and should only be used on local segments

E.

It is an SSM multicast address range which is used on the entire network.

Huawei H12-261 Practice Test 2

Question

Huawei H12-261 Practice Tests

Practice Tests