The following description of BGP load sharing is wrong with ?( Multiple choice question)

The AS_Path properties of the equivalent routes that form load sharing must be different.

The destination CIDR blocks are the same, and load sharing can be formed between BGP routes with different sources.

If BGP load sharing is implemented , the local device needs to configure the peer next-hop-local command to change the next hop address to its own address when issuing a route to an IBGP peer group .

IBGP routes and EBGP routes that reach the same destination in the public network can form a load sharing

The AS_Path properties of the equivalent routes that form load sharing must be different.

The destination CIDR blocks are the same, and load sharing can be formed between BGP routes with different sources.

If BGP load sharing is implemented , the local device needs to configure the peer next-hop-local command to change the next hop address to its own address when issuing a route to an IBGP peer group .

IBGP routes and EBGP routes that reach the same destination in the public network can form a load sharing

The following statement about OSPF route filtering is incorrect.( Single choice questions).

Interface-based filtering of LSAs allows all LSAs in the inbound and outbound directions except grace LSAs

In the NSSA area, filtering for external route ingestion and advertisement can be configured on ASBR or ABR

Filtering for the three types of LSAs needs to be configured on the ABR across OSPF regions

Interface-based filtering of LSAs allows all LSAs in the inbound and outbound directions except grace LSAs

Based on the link state database, when calculating routes, the fiter-policy import command is used, which only affects the route addition in the route table, and has no effect on the OSPF link state database

Regarding the Stub region and the Totally Stub region of the OSPF protocol, the following statement is correct (multiple choice)

ASBR cannot be present in either the Stub zone or the Totally Stub zone

If there are two ABR in the Totally Stub zone, each ABR sends an LS ID of 0000 to the router in the zone LSA

After modifying the original Stub area to a Totally Stub area, the number of LSAs in the LSDB of each router in the region will definitely be reduced

ASBR cannot be present in either the Stub zone or the Totally Stub zone

When you modify the original Stub area to a Totally Stub region, the number of LSAs propagating within the region will definitely decrease

If there are two ABR in the Totally Stub zone, each ABR sends an LS ID of 0000 to the router in the zone LSA

When there are multiple rule rules for ACLs in VRP, which of the following statements is true regarding the order of matching? Single choice questions).

By default, matching is made from smallest to largest according to the Rule-ID.

By default, matching is based on the principle of "depth first"

By default, matching occurs in the order in which the permit is matched first and denim later.

By default, matching is made from smallest to largest according to the Rule-ID.

There is only one matching order and cannot be modified.

Which of the following is incorrect about HTTPS?( Multiple Choice)

When using HTTPS to access a website, the website cannot be accessed if the user's browser doesnot recognize the website's digital certificate.

HTTPS secures access to data by using SSLVPN.

If the HTTPS traffic contains a virus, the router cannot detect the virus directly using IPStechnology

When using HTTPS to access a website, the website cannot be accessed if the user's browser doesnot recognize the website's digital certificate.

HTTPS protocol uses TCP port 443 by default

What are the differences between traffic policing and traffic shaping?

For traffic shaping, the router caches excess packets until bandwidth is available again

For traffic shaping, it can be over-CIR Traffic adjustment for the usage of the buffer

Traffic shaping is applied in the inlet direction and traffic supervision is applied in the outlet direction

For traffic shaping, the router caches excess packets until bandwidth is available again

The token bucket algorithm is used for traffic supervision, and the SPD algorithm is used for traffic shaping

For traffic policing, the usage of the buffer can be adjusted for traffic exceeding the CIR

For traffic shaping, it can be over-CIR Traffic adjustment for the usage of the buffer

The following description of VRRP load sharing is correct?( Multiple choice questions).

You can create multiple VRRP backup groups on one interface of a router . The router can act as a master for one VRRP backup group and as a backup for other VRRP backup groups

When you deploy load sharing, hosts in the same LAN are required to configure the IP addresses of different virtual routers as gateway addresses for missing provinces

VRRP load sharing requires at least two virtual routers to provide forwarding services at the same time

When configuring priority, make sure that the same router acts as a master in the three VRRP backup groups

You can create multiple VRRP backup groups on one interface of a router . The router can act as a master for one VRRP backup group and as a backup for other VRRP backup groups

When you deploy load sharing, hosts in the same LAN are required to configure the IP addresses of different virtual routers as gateway addresses for missing provinces

VRRP load sharing requires at least two virtual routers to provide forwarding services at the same time

The following statement about EVPN Type5 routing is wrong?( Single choice questions).

Type5 routing carries both Layer 2 VWI and Layer 3 VNI

Type5 routes carry Layer 3 VNI.

Type5 routing carries both Layer 2 VWI and Layer 3 VNI

The IP Prefix field can carry both host and network segment addresses.

Regarding the sliding window of TCP, what are the following descriptions that are enough to be wrong? ( Multiple choice question)

The sender declares the initial window size

Sliding window size can only be increased or remain unchanged

The sender declares the initial window size

The sender does not need to transmit messages of full window size

The TCP sliding window allows multiple packets to be sent before an acknowledgment is received

After the retransmission timer times out, the sender has not received an acknowledgment and will retransmit unacknowledged data

The receiver needs to acknowledge the sender's packet

Sliding window size can only be increased or remain unchanged

/R1Jospf1lRL-osp- jarea.2[RLospf-1-arca-0002]network1001310000 As shown in the configuration, the administrator configured OSPF but RI on R1 You cannot learn routes for other routing rings. Then the possible cause is the question).

This router is configured with a different zone ID than its neighbor router's zone ID

This router does not have authentication features configured, but neighbor routers configure authentication features

This router does not have an OSPF process number configured

This router is configured with a different zone ID than its neighbor router's zone ID

This router does not have authentication features configured, but neighbor routers configure authentication features

The declared network address of this router does not match the interface mask

What is the following description of MPLS BGPVPN incorrect?

BGP So0, which is used to prevent routes issued from a VPN site from passing through the MPLS backbone and back to that site. So0 is an extended group attribute that MP-BGP automatically generates.

The TTL field in the label has the effect of preventing loops.

IBGP PEes generally use the Loopback interface address to establish a stable BGP neighbor relationship

BGP So0, which is used to prevent routes issued from a VPN site from passing through the MPLS backbone and back to that site. So0 is an extended group attribute that MP-BGP automatically generates.

The routing exchange between D. PE-CE can be static routing, OSPF multi-instance, IS-IS multiinstance, EBGP

The following information about MPLS tags describes the error as ?( Single choice questions).

If the bottom of the label identifies S=0, it indicates that the label is the bottom label and is directly forwarded to the IP.

By default, devices support php features, and the ERAS node that supports PHP assigns a tag value of 3 to the penultimate hop node

When the tag value is 0, the tag must be ejected and the message must be forwarded based on IPv4

The MPLS tag is 4 bytes long and encapsulated between the link layer and the network layer.

If the bottom of the label identifies S=0, it indicates that the label is the bottom label and is directly forwarded to the IP.

Run the SSM across the entire HW IP multicast network. The following about SSM understands correctly?( Multiple choice question)

Ideal for 1-to-many applications

SSM is recommended when you have multiple sources and expect to minimize the state of mroute in your network Ideal for many-to-many applications

The following statement about IPSG technology is correct (single choice).

If an interface is configured as the OKCP Scooing Tust interface, the interface can normally receive DHCP ACK and DHCPNAK responded to by the OHHNP server and DHCPOffer packets, other untrusted ports cannot receive these packets properly.

The ip source checkuser-bind check-item command is used to configure VLAN- or interface-based IP packet checks, which take effect for both dynamic and static table entries.

If an interface is configured as the OKCP Scooing Tust interface, the interface can normally receive DHCP ACK and DHCPNAK responded to by the OHHNP server and DHCPOffer packets, other untrusted ports cannot receive these packets properly.

On Huawei routers, ipSG functions can be configured in Vlanif.

The IPSG can perform binding table match checks on IP packets entering and leaving the interface.

The following description of the PPPoE data frame is correct?( Multiple choice questions).

When PPPoE passes session data, Code must be set to Ox0

The Session_ID of the PPP session is not allowed to change and must be the specified in the Discovery phase

Once a PPPoE session is established, all Ethernet packets are unicast

The Ethernet_Type domain is fixed to Ox8863

When PPPoE passes session data, Code must be set to Ox0

The Session_ID of the PPP session is not allowed to change and must be the specified in the Discovery phase

Regarding BGP route filtering, the following description is wrong?

In the same node of Route-Policy, multiple if-match clauses for different attributes are "or" relationships.

The filtering relationship between Route-Policy's noodes is "or." ", that is, as long as a node filter is passed, it can pass through the Route-policyo

For routes published locally, configure a routing policy that takes effect before the route is added to the BGP route table.

In the same node of Route-Policy, multiple if-match clauses for different attributes are "or" relationships.

When a route to a BGP peer is received, a routing policy is enforced to filter unwanted BGP routes that are not added to the local BGP routing table.

Regarding route introduction, the following description is correctly ?( Multiple choice questions).

OSPF introduces two types of external routes, with the first type of external route taking precedence over the second type of external route.

Use the default-route imported command in BGP only to introduce default routes that already exist in the local IP routing table.

OSPF introduces two types of external routes, with the first type of external route taking precedence over the second type of external route.

Use the default-route imported command in BGP only to introduce default routes that already exist in the local IP routing table.

When ISIS introduces an external route, if you do not specify the route type that is introduced, the Level-1 route is introduced by default on the L1/2 router

When ISIS introduces an external route, if you do not specify the type of route that is introduced, the Leve1-1 route is introduced by default on the L1 router .

Two routers connected through a firewall cannot establish a BGP neighbor relationship. What causes it?

Firewalls that do not have an open UDP port number of 179

EBGP Multi-hop is not configured

The firewall did not release IP protocol number 89

Firewalls that do not have an open UDP port number of 179

BGP neighbors must form a Layer 2 adjacency

The following statement about the NSSA area is correct (multiple choice).

In the OSPF neighbor in the NSSA region sends hello packets, position 1 within the option field , position E

In the NSSA area where the OSPF neighbor sends hello packets, the N position 0, E within the option field Position 1

The NSSA zone must automatically generate a default LSA to access the external network

The NSSA zone generates a Category VII LSA to advertise external routing, and the FA address in the Category VII LSA acts to prevent loops

In the OSPF neighbor in the NSSA region sends hello packets, position 1 within the option field , position E

A company network runs the OSPF protocol, an engineer in order to understand the OSPF mechanism in the network to perform packet capture operations, the following ospf message description is correct?

LSUpdate messages synchronize the link state database by sending detailed LSA information

The interface sends Hello packets as soon as it joins the OSPF area

LSUpdate message is sent only when an adjacency relationship is established

LSUpdate messages synchronize the link state database by sending detailed LSA information

The interface sends Hello packets as soon as it joins the OSPF area

When an LS Update packet is received, the router must send an LSAck to acknowledge

There is no routing protocol running on the router HW and only one default route reaches the remote network. On the router job with the extension Ping remote file server address 105401. The result of Ping on the router job is presented as "Request time." out"? Based on the above description, the error in the following analysis is ?

Router HW's next hop router does not have a path to the destination address

Ping is successful, but congestion occurs on the path to the destination address

ICMP packets can reach the destination address But the destination device failed to reply

Router HW does not have a legitimate route to the destination address

There is a firewall in the remote destination network, and no ICMP traffic is allowed

What are the following techniques for improving MPLS BGP VPN reliability?( Multiple choice question)

dual home networking is configured at the access layer

VPN GR Private IP routing between

dual home networking is configured at the access layer

VPN GR Private IP routing between

Router HW1 exists in the carrier HW's network as an MPLSLSR router. The router receives a packet carrying a label, but the label entry does not exist in its LFIB. So how does the router handle that message?

Router HW1 strips off the label and looks for the FIB using the P destination address

Router HW1 uses LDP to create an LSP and creates a new path in LFIB for the label carried in the message

Router HW1 will forward the message with the default label

Which of the following scenarios does not require RPF checking?( Single choice questions).

When the RP in PIM SM establishes the source tree to the multicast source

When a router in PIM SM receives multicast traffic when a shared tree is established to an RP in PIM SM

When a pruning message is received in PIM SM

When the RP in PIM SM establishes the source tree to the multicast source

If multiple candidate RPs are configured in a multicast group, which of the following parameters does the RP that elect the group from multiple candidate RPs need to be compared?

The mask length of the group range for the C-RP service that matches the group address that the user joined

The IP address of the C. C-RP interface Number of

The mask length of the group range for the C-RP service that matches the group address that the user joined

The IP address of the C. C-RP interface Number of

You expect to deploy multicast video applications on your private, on-premises network. To achieve this, you need to have a private multicast IP address in your network . So which range of IP addresses can be used?( Single choice questions).

240000-254255255255 E. 226000-226255255255

Which of the following statements about RADIUS is correct?( Single choice questions).

RADIUS supports both wired and wireless access modes.

MAC authentication does not require a username password, so you cannot use RADIUS to authenticate the user.

RADIUS supports both wired and wireless access modes.

SEPARATION OF RADIUS PROTOCOL AUTHENTICATION, AUTHORIZATION, AND AUDIT.

RADIUS authentication and Portal authentication cannot be used together because the Portal server can typically be used to authenticate users when portal authentication is deployed.

Huawei H12-891 Practice Test 5 - Free Online Exam Prep & Questions

There is an existing network of router RI, router R, router R3, and router R4 The 4 routers are interconnected via an LN network. All 4 routers are equipped with basic oSPF. When you execute the command "displayosp" on router R2 f peer", router R2 and router R3 are discovered The status between is "2-way". So what conclusions can you draw from this output? Multiple choice questions).

A.

Router R2 is not a DR

B.

Router R3 is not a DR, nor is it a BDR

C.

There is no full adjacency between router R2 and router R3

D.

Router R4 is destined for DR

E.

Router R2 is DR or BDR

Huawei H12-891 Practice Test 5

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