H35-210_V2.5 HCIA-Access V2.5 Exam Questions and Answers

True

False

Turn on the grid delete coding switch

The channel mode is selected as fast

Turn off the dynamic online adaptation function

Improve noise tolerance

Outdoor type

Home user type

SBU business user type

MINI-DSLAM

DC functions include saving and restoring device configuration files and imaging programs

There are two operation entrances for the DC function: resource management and physical view

As an FTP/TFTP server, the network management server must start the FTP/TFTP service

When performing the "Configure Network Management FTP/TFTP Parameters" configuration operation on the network management, the default IP and alternative IP should be the IP address of the network management server

The cos field of 802.1P

Tos field of IP packet

DSCP field of IP packet

EXP field of MPLS packet

The EPON standard is one of many TDM-PON standards and has the basic characteristics of a TDM-PON network: a tree topology network is composed of OLT, ONU and ODN (Optical Distribution Network).

In the logical topology, the EPON protocol establishes a logical link for the OLT to each ONU, and the leading byte of the Ethernet data frame carries the logical link identity, that is, LLID (Logical Link Identity).

The downstream data stream from the OLT to the ONU is encapsulated as an Ethernet message, and the corresponding LLID is attached and sent in the tree PON network. The optical splitter in the ODN broadcasts the data stream to each branch, and all ONUs can receive the downlink Ethernet data frame, and selectively receive their own data according to the LLID.

In the upstream direction from the ONU to the OLT, each ONU uses the broadcast mode to share the upstream bandwidth.

GetRequest

PutRequest

SetRequest

GetResponse

The message interaction experienced by DHCP to obtain an address normally includes Discover, Offer, Request, ACK

Multiple DHCP servers are not allowed in the network at the same time, because multiple servers will respond at the same time, and the client cannot select an address

If the client abandons the current IP address, she uses a DHCP RELEASE message to notify the server, and the server reclaims this address for next use.

The Discover message between the DHCP Relay and the DHCP server is a unicast message

Hot-swappable the board, check whether the board can be restored to normal after reset

Press the RESET button on the handle bar of the main control board to forcibly reset the main control board. Observe whether the main control board can return to normal after resetting.

Use the command board reset to reset the service board. Check whether the service board can be restored to normal after resetting.

All of the above

The configuration of the two on the OLT is the same.

When the unicast VLAN and the multicast VLAN are different, the configuration of the two on the OLT is the same.

When the unicast VLAN and the multicast VLAN are different, under the OLT+MDU networking, an additional gemport-maping and service-port for the multicast VLAN on the MDU should be added on the OLT.

None of the above

Main control board host software problem

Incorrect data configuration

User ring network problem

The main control board component is damaged

# ifconfig -a

# cat /opt/sybase/interfaces

# cat /etc/hosts

# less /etc/hosts

LAN

ALONE

WAN

Integrated

PADT can be issued by the PC or BRAS at any time during the discovery phase to terminate the PPPoE dialogue

The destination address of PADI is the broadcast address 0xffffffff, and the source address is the Ethernet address of the host

The entire discovery phase of PPPoE includes PADI, PADO, PADR, PADS, PADT

SESSION-ID identifies the value of a PPPOE session

SC

PLC

FC

LC

TG

MG

MGC

UG

4, 5

6, 7

16

17

Check the port indicator status

Check the port configuration

Ping

View the statistics of packets sent and received by the port

850

1310

1490

1550

The type of sub-vlan can be smart-vlan or mux-vlan

Standard VLAN can include standard Ethernet ports and service virtual ports

A mux-vlan can only contain one uplink port and service virtual port

A smart-vlan can contain multiple uplink ports and service virtual ports

The first point. Means execution, same as sh

The second point. Connected to the back /, ./ indicates the current directory

The third point. Connected to the previous /, which means the root directory

The third point. Before profile, the entire .profile is a file name, which means a hidden file

True

False

LCP

IPCP

IP

IPX

True

False

Stardard VLAN

Smart VLAN

Sub VLAN

MUX VLAN

PIR=CIR

PIR=min(1.5*cir, 10240000)

PIR=min(2*cir, 10240000)

Nothing

OLT

OAM

ODN

ONU

True

False

16

32

48

64

5

8

9

13

True

False

The network port of the maintenance PC

"CON" port on the main control board

"ETH" port on the main control board

"ESC" port on the main control board

UA5000 adopts the same hardware platform and supports the integration of PSTN, NGN, IMS and FTTx.

UA5000 supports various traditional private line services under TDM/PSTN.

UA5000 supports ADSL2+ service access.

The UA5000 does not support VDSL2 service access temporarily.

It can improve the uplink bandwidth utilization of the PON port

It can improve the bandwidth utilization of the downstream line of the PON port

More ONUs can be added to the PON port

Increased the upstream bandwidth of the PON port

System parameter template

Traffic template

Route template

DBA template

WRR

PQ

WFQ

CQ

Use anti-mac to solve

Defense IP spoofing

Layer 2 isolation and controlled mutual access of users

Use port physical information to identify users

Super VLAN aggregates multiple Sub VLANs

Super VLAN corresponds to a routing interface

Sub VLAN uses Super VLAN together

The main purpose of Super VLAN is to save IP addresses.

4;16

8;256

10;1024

12;4096

True

False