Which of the following statements are TRUE about the PVID

The PVID of an access port is the VLAN that it belongs to, and is not configurable.

Atrunk or hybrid port allows multiple VLANs, and you can set the PVID of a trunk or hybrid port.

After you use the undo vian command to delete the VLAN that an access port is in, the PVID of the access port changes to VLAN 1.

After you use the undo vlan command to delete a VLAN which is the default VLAN of a hybrid or trunk port, the default VLAN of the port does not change.

Which of the following statements are TRUE about a trunk port?

To change a trunk port into a hybrid port, you must configure the port as an access port first.

The trunk ports of a switch can connect only to switches.

A trunk port does not change the VLAN tag of any incoming VLAN tagged frame.

A trunk port always sends a frame out with its VLAN tag unchanged, regardless of whether the VLAN ID of the frame is the same as the PVID of the trunk port or not.

Which of the following statements are TRUE about Private VLANs ?

The Private VLAN function is implemented by using hybrid ports and the shared VLAN learning mechanism.

Secondary VLANs are isolated at Layer 2, and cannot communicate with one another.

Secondary VLANs are isolated at Layer 3, and cannot communicate with one another.

The shared VLAN mechanism refers to synchronizing the MAC address entries from the secondary VLANs to the Private VLAN, with the outgoing port unchanged.

Which of the following scenarios is local proxy ARP suitable for?

Two PCs in the same VLAN but isolated by port isolation require Layer 3 communication.

Hosts in different sub-VLANs of a super VLAN require Layer 3 communication.

Hosts in different secondary VLANs of an Private VLAN require Layer 3 communication.

Hosts on the same IP subnet but connected to different Layer 3 interfaces requireLayer 3 communicate.

Why do Layer-3 switches replace routers to implement inter-VLAN routing?

In the single-arm routing method that implements inter-VLAN routing through a router, packets are delayed due to the round trip time on the trunk link.

Routers are more expensive than switches.

Most low-end and mid-range routers use software to forward packets, and thus have low speed, causing bottlenecks.

Layer-3 switches use hardware to forward packets, thus have large throughput and high speed, and avoid delay and instability brought by using external links.

Which parts are involved in Layer-3 forwarding on a Layer-3 switch?

Platform software protocol stack

What are the differences between RSTP and STP

They use different BPDU formats and sending modes

RSTP delivers rapid convergence upon topclogy changes

RSTP mechanisms include ?

Root port rapid convergence mechanism

Designated port rapid convergence mechanism

Backup port rapid convergence mechanism

Which of the following statements about MSTP is correct?

MSTP generates multiple spanning trees based on instances.

An instance can contain one or more VLANs, and each VLAN can map only to one instance.

MSTP implement load sharing for traffic among instances.

MSTP is defined in IEEE 802.1s.

Which of the following statements about BPDU guard are correct?

An edge port transitions to a non-edge port when it receives a BPDU.

BPDU guard is configured in system view.

With BPDU guard enabled, edge ports are shut down when a BPDU is received.

BPDU guard is configured in port view.

Which of the following about high availability is true?

The availability of a product refers to the capability to implement specific functions in specific time under certain conditions.

A higher availability means a longer time for a product to operate normally.

MTBF means “Mean Time Between Failures.

High availability is MTBF/MTTR.

Which of the following statements about link aggregation is correct?

Link aggregation combines multiple physical Ethemet ports into one logical aggregation group.

The upper layer entities of the link aggregation service consider the physical links in the same aggregation group as one logical link.

Link aggregation allows you to increase bandwidth by distributing traffic across the member ports in a single aggregation group.

The member ports in the same aggregation group cannot dynamically back up each other.

The features of Smart Link include:

Dedicated to dual uplink networks

Which of the following are true about an IRF fabric that comprises distributed chassis switches ?

The SMB of the master is one of the SMBs of the IRF Fabric

The AMB of a slave si the AMB of the IRF fabric

The AMB of the master is the AMB of the IRF fabric

The SMBs of the slaves are the SMBs of the IRF fabric

Which of the following statements about SPT are correct?

In an SPT, the path from the multicast source to each receiver is the optimal.

In an SPT, each router maintains an (S, G) entry.

Different multicast sources have independent SPTs rooted at themselves.

In an SPT, each router maintains an (*, G) entry.

Which of the following statements about RPT are correct?

Building of a RPT is initiated by receivers.

In an RPT, each router maintains (*, G) entries.

The multicast sources send multicast data to their receivers. The RPs receive the multicast data and forward the data to the receivers.

in an RPT, each router maintains (S, G) entries.

Which of the following statements about multicast protocol classification are correct?

Multicast protocols fall into dense mode and parse mode.

Multicast routing protocols can be divided into intra-domain and inter-domain protocols.

Intra-domain multicast protocols include DVMRP, MOSPF, and PIM.

MSDP is an inter-domain multicast routing protocol.

Which of the following tasks must be completed before you perform Layer 3 multicast configuration?

Enable multicast routing globally by using the multicast routing command

Which of the following statements about PIM are true?

To configure PIM-DM, you only need to enable PIM-DM in interface view

To configure PIM-SM, you need to enable PIM-SM and finish RP-related and C-BSR-related configurations. If it is required to specify a device as the DR of a sharednetwork segment, you also need to configure the priority for DR election.

You can configure PIM in VLAN interface view.

You can configure PIM in VLAN view.

What does network security mean?

Ensure the security of the internal LAN.

Block illegal access to the internal LAN.

Ensure the security of data exchanged between the intemal network andexternal network.

Make sure users can access network resources at will.

Which of the following behaviors are not security threats or hacking behaviors?

Log in to your own computer to change data.

Use existing backdoors to obtain network administrators’ passwords.

Use electronic eavesdropping technologies to obtain the passwords of key departments.

Use software tools to attack network devices.

Which of the following are supported by EAD fast deployment?

Before 802.1X authentication, users can access specific subnets.

Users failing 802.1X authentication can access specific subnets.

When a user passes 802.1X authentication, the user's HTTP requests are redirected to a specified URL.

Before a user passes 802.1X authentication, the user's HTTP requests are redirected to a specified URL.

To configure a device as an SSH server and set the authentication method to publickey, which of the following configurations are required?

Enable the SSH server function.

Create an SSH user, set the authentication method to publickey, and specify the public key.

Specify the authentication mode and protocol type for the user interfaces.

Which of the following statements about SFTP are not true?

SFTP and SSH are two independent security protocols

SFTP is the short for secure FTP.

You can set the service type to SFTP or all when configuring a user on the SFTP server

What are the major objectives of campus network management and maintenance?

Ensure normal network operation through periodic or real-time monitoring of network devices and terminals

Provide fast responses to new requirements through system upgrade and capacity expansion

Deploy the latest network management system

H3CSE PostTest

Authored by Nadjib Ali Nurwahid

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MULTIPLE SELECT QUESTION

3 mins • 1 pt

Which of the following are the layers of the hierarchical network model?

Distribution layer

Campus network core layer

Core layer

Access layer

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Which of the following are the modules of the H3C modular network architecture?

Disaster recovery

VPN access

Server farm

WAN distribution

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Common designs for the core layer of a large-sized LAN include

Single-core

Dual-core

Multi-node ring

Full mesh

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Which of these technologies can implement redundancy in large-sized networks?

VRRP

MSTP

SMart Link

Dynamic Routing Protocol

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which of the following redundancy protocols is most suitable for a dual-homed network?

STP

RRPP

Smart Link

VRRP

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

IRF provides link and node redundancy.

True

False

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

IEEE 802.10 inserts a VLAN tag .... in the Ethernet frame header.

Before the source MAC field

After the source MAC field

Before the destination MAC field

After the destination MAC field

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H3CSE PostTest

Which of the following are the layers of the hierarchical network model?

Which of the following are the modules of the H3C modular network architecture?

Common designs for the core layer of a large-sized LAN include

Which of these technologies can implement redundancy in large-sized networks?

Which of the following redundancy protocols is most suitable for a dual-homed network?

IRF provides link and node redundancy.

IEEE 802.10 inserts a VLAN tag .... in the Ethernet frame header.

The Tag Control Information (TCl) field comprises the following elements:

Which of the following statements are TRUE about the PVID

Which of the following statements are TRUE about a trunk port?

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