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Question 8/53
To facilitate subsequent management, a university wants to use double-tagged VLANs. The inner VLAN tag is used to identify users, and the outer VLAN tag is used to identify services. Which VLAN attribute should be used?
Correct Answer: C
* Double-Tagged VLANs :
* Double-tagging involves adding two VLAN tags to a packet:
* Inner VLAN Tag : Identifies users or devices.
* Outer VLAN Tag : Identifies services or networks.
* VLAN Attributes :
* QinQ : Adds an outer VLAN tag to an already tagged packet, enabling double-tagging.
* Stacking : Similar to QinQ but less commonly used.
* Common : Supports only single-tag VLANs.
* Scenario Analysis :
* The university requires double-tagging for user and service identification.
* The QinQ attribute is specifically designed for this purpose.
* Why C?
* The QinQ attribute supports double-tagging, making it the correct choice for this scenario.
Thus, the correct answer is C .
References:
* HCIA Huawei ACCESS Official Documentation , Chapter: VLAN Design.
* IEEE 802.1ad QinQ Standards .
* Double-tagging involves adding two VLAN tags to a packet:
* Inner VLAN Tag : Identifies users or devices.
* Outer VLAN Tag : Identifies services or networks.
* VLAN Attributes :
* QinQ : Adds an outer VLAN tag to an already tagged packet, enabling double-tagging.
* Stacking : Similar to QinQ but less commonly used.
* Common : Supports only single-tag VLANs.
* Scenario Analysis :
* The university requires double-tagging for user and service identification.
* The QinQ attribute is specifically designed for this purpose.
* Why C?
* The QinQ attribute supports double-tagging, making it the correct choice for this scenario.
Thus, the correct answer is C .
References:
* HCIA Huawei ACCESS Official Documentation , Chapter: VLAN Design.
* IEEE 802.1ad QinQ Standards .
- Question List (53q)
- Question 1: The OLT supports VLAN tag translation. When the SVLANs with ...
- Question 2: Which of the following indicator status indicates that the M...
- Question 3: On an Ethernet network, ARP packets are classified into ARP ...
- Question 4: The pigtail type of the PON optical port is:...
- Question 5: The OLT supports QinQ and VLAN stacking attributes. Which of...
- Question 6: By default, FEC is enabled in the downstream direction in th...
- Question 7: The SNMP protocol is at the ( ) layer in the TCP/IP protocol...
- Question 8: To facilitate subsequent management, a university wants to u...
- Question 9: When adding an ONT to the OLT, you need to:...
- Question 10: Which of the following statements about the loss of fiber co...
- Question 11: What kind of DSL line will affect vectoring performance sign...
- Question 12: During routine O&M, you can run the display ont info com...
- Question 13: Generally, an OLT is a switch or router and a multi-service ...
- Question 14: Which of the following are access network VLAN types? (Selec...
- Question 15: Ethernet switches work in the ( ) layer of the OSI model....
- Question 16: In a traffic profile, the traffic rate can be configured, bu...
- Question 17: By default, ONUs connected to the same PON port of a Huawei ...
- Question 18: When other SNMP parameters are correctly configured, how to ...
- Question 19: Which of the following commands can be used to query the rec...
- Question 20: ADSL G.992.1 (G.dmt) is a technical specification that does ...
- Question 21: GPON is an Ethernet-based passive optical access technology ...
- Question 22: The customer needs to access the following information point...
- Question 23: DHCP implements centralized management of IP addresses. The ...
- Question 24: The MA5800 supports upstream transmission through the contro...
- Question 25: The PADT packet in PPPoE is used to terminate a session....
- Question 26: In the downstream direction of the GPON, all ONUs receive th...
- Question 27: When carrying services, the GEM port needs to map services t...
- Question 28: The 48-bit MAC addresses of computer network interface cards...
- Question 29: Which technology is used by vectoring to cancel inter-VDSL2 ...
- Question 30: When configuring a bridging ONU, how do you set the VLAN of ...
- Question 31: In Huawei access network products, which of the following VL...
- Question 32: When the IP address lease of a DHCP client reaches a specifi...
- Question 33: Which of the following methods can be used to test the reset...
- Question 34: In the GPON system, the GEM frame is the smallest bearer uni...
- Question 35: In a GPON system, dynamic bandwidth assignment (DBA) needs t...
- Question 36: Which of the following protocols are included in Point-to-Po...
- Question 37: Which of the following protocols works at the transport laye...
- Question 38: The OLT supports multiple protection switching modes for GPO...
- Question 39: Access-layer devices are required to provide access for a la...
- Question 40: Which of the following statements about MIB is incorrect?...
- Question 41: Based on the board high availability principle, the MA5800 c...
- Question 42: Which of the following VLAN types is not supported by the MA...
- Question 43: Which one of the following protection schemes can protect br...
- Question 44: A trunk interface allows packets from VLAN 100, VLAN 200, an...
- Question 45: In a 2.4 GHz frequency band, three sub-channels that do not ...
- Question 46: When adding an ONU to the OLT, if Control flag is deactive, ...
- Question 47: The OLT is interconnected with a LAN switch through the GE o...
- Question 48: The ONU connected to the GPON port can go online normally. H...
- Question 49: Which of the following statements about the test of the mean...
- Question 50: If you want to test the optical transmit power of the ONU, c...
- Question 51: The routing table of a router contains the following two ent...
- Question 52: In a GPON network, DBA has the following functions:...
- Question 53: According to the ITU-T G.984.X series standards, the downstr...
