Cisco®
Oracle
CompTIA
Checkpoint
ISC
EC-Council
EXIN
Fortinet
ITIL®
Juniper
Microsoft
VMware
Avaya
SAP
Google
Salesforce
Amazon
Palo Alto Networks
ISC2
Splunk®
All Vendors
  2. Home
  3. Exams
  4. Huawei
  5. H12-261_V3.0

Free Huawei H12-261_V3.0 Exam Questions (page: 17)

Page 17 of 120
PDF with 479 Questions

Which of the following statements about digital certificates is false?

  1. Digital signatures guarantee the integrity of digital certificates.
  2. Digital certificates contain public key information.
  3. When the peer certificate received is within the validity period, but the device's own time is incorrect and the certificate is not within the validity period, the authentication fails.
  4. two pEven if the RI entity is not in the same CA system, as long as the two parties can identify the other party's CA, the identity verification can be completed.

Answer(s): D

Explanation:

A digital certificate refers to a digital authentication that marks the identity information of the communication parties in the Internet communication, and people can use it to identify the identity of the other party on the Internet.
The CA center adopts the digital certificate authentication technology with digital encryption technology as the core. Through the digital certificate, the CA center can perform various processing such as encryption, decryption, digital signature and signature authentication for various information transmitted on the Internet.



What is the relationship between CIR, BC and TC?

  1. CIR=TC/BC
  2. CIR=BE/TC
  3. TC=CIR/BC
  4. TC=BC/CIR

Answer(s): D

Explanation:

CIR contracted data rate
Tc Commitment rate measurement timeBc agreed burst size



On a newly deployed routerWRED is configured on HW., which of the following descriptions about WRED features is correct? (multiple choice) ( confirmed)

  1. WREDDifferent drop thresholds and packet loss rates can be set for packets with different priorities
  2. When traffic exceeds a minimum threshold, WRED starts dropping all ingress traffic (tail drop)
  3. Avoid global synchronization by selectively dropping multiple TCP streams
  4. Low-bandwidth traffic is more likely to drop than high-bandwidth traffic

Answer(s): A,C

Explanation:

Weighted Random Early Detection (WRED: Weighted Random Early Detection) is a combination of random early detection and priority queuingWell, this combination provides priority traffic handling for high priority packets.
When an interface starts to become congested, it selectively drops lower- priority traffic, rather than simply randomly dropping packets.
B and D are obviously wrong.



Which of the following descriptions is correct about the FTP protocol?

  1. existFTP In Passive mode, the client completes the control and dataInitialization of a TCP session
  2. existFTP In Active mode, the server side passes the command"PORT" to tell the client which port it expects to send data on
  3. FTP always uses one TCP session to transfer control information and data information
  4. FTP always uses TCP port 20 for data sessions and ICP port 21 for control sessions
  5. FTP always uses TCP port 21 for data sessions and TCP port 20 for control sessions

Answer(s): A

Explanation:

FTP (File Transfer Protocol, file transfer protocol) YesTCP/IP One of the protocols in the protocol group.The FTP protocol consists of two componentspoints, one of which isThe FTP server, and the second is the FTP client.
By default, the FTP protocol uses two TCP ports, 20 and 21, where 20 is used to transmit data and 21 is used to transmit control information. However, whether to use 20 as the port for data transmission is related to the transmission mode used by FTP. If the active mode is used, the data transmission port is 20; if the passive mode is used, the specific port to be used is determined by the server and the client through negotiation.



Viewing page 17 of 120



Post your Comments and Discuss Huawei H12-261_V3.0 exam prep with other Community members:

H12-261_V3.0 Exam Discussions & Posts