Download CCNA Cisco Certified Network Associate.200-125.ExamTopics.2026-03-21.182q.tqb

Vendor: Cisco
Exam Code: 200-125
Exam Name: CCNA Cisco Certified Network Associate
Date: Mar 21, 2026
File Size: 10 MB
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Demo Questions

Question 1
Which IPv6 address is valid?
  1. 2031:0:130F::9C0:876A:130B
  2. 2001:0db8:0:130H::87C:140B
  3. 2001:0db8:0000:130F:0000:0000:08GC:140B
  4. 2031::130F::9C0:876A:130B
Correct answer: A
Question 2
Which value is used to determine the active router in an HSRP default configuration?
  1. Router loopback address
  2. Router IP address
  3. Router priority
  4. Router tracking number
Correct answer: B
Question 3
Which two protocols can detect native VLAN mismatch errors? (Choose two.)
  1. STP
  2. PAgP
  3. Cisco Discovery Protocol
  4. DTP
  5. VTP
Correct answer: AC
Question 4
Which three are characteristics of an IPv6 anycast address? (Choose three)
  1. one-to-many communication model.
  2. delivery of packets to the group interface that is closest to the sending device.
  3. any-to-many communication model.
  4. a unique IPv6 address for each device in the group.
  5. the same address for multiple devices in the group.
  6. one-to-nearest communication model.
Correct answer: BEF
Question 5
How many bits are contained in each field of an IPv6 address?
  1. 24
  2. 4
  3. 8
  4. 16
Correct answer: D
Question 6
Refer to the exhibit.
A problem with network connectivity has been observed. It is suspected that the cable connected to switch port Fa0/9 on Switch1 is disconnected. What would be an effect of this cable being disconnected?
  1. Host B would not be able to access the server in VLAN9 until the cable is reconnected.
  2. Communication between VLAN3 and the other VLANs would be disabled.
  3. The transfer of files from Host B to the server in VLAN9 would be significantly slower.
  4. For less than a minute, Host B would not be able to access the server in VLAN9. Then normal network function would resume.
Correct answer: D
Question 7
Which logging command can enable administrators to correlate syslog messages with millisecond precision?
  1. no logging console
  2. logging buffered 4
  3. no logging monitor
  4. service timestamps log datetime mscec
  5. logging host 10.2.0.21
Correct answer: D
Question 8
Which two circumstances can cause collision domain issues on VLAN domain? (Choose two.)
  1. duplex mismatches on Ethernet segments in the same VLAN
  2. multiple errors on switchport interfaces
  3. congestion on the switch inband path
  4. a failing NIC in an end device
  5. an overloaded shared segment
Correct answer: AC
Explanation:
Collision Domains -A collision domain is an area of a single LAN where end stations contend for access to the network because all end stations are connected to a shared physical medium. If two connected devices transmit onto the media at the same time, a collision occurs. When a collision occurs, a JAM signal is sent on the network, indicating that a collision has occurred and that devices should ignore any fragmented data associated with the collision. Both sending devices back off sending their data for a random amount and then try again if the medium is free for transmission. Therefore, collisions effectively delay transmission of data, lowering the effective throughput available to a device. The more devices that are attached to a collision domain, the greater the chances of collisions; this results in lower bandwidth and performance for each device attached to the collision domain. Bridges and switches terminate the physical signal path of a collision domain, allowing you to segment separate collision domains, breaking them up into multiple smaller pieces to provide more bandwidth per user within the new collision domains formed.
Collision Domains -
A collision domain is an area of a single LAN where end stations contend for access to the network because all end stations are connected to a shared physical medium. If two connected devices transmit onto the media at the same time, a collision occurs. When a collision occurs, a JAM signal is sent on the network, indicating that a collision has occurred and that devices should ignore any fragmented data associated with the collision. Both sending devices back off sending their data for a random amount and then try again if the medium is free for transmission. Therefore, collisions effectively delay transmission of data, lowering the effective throughput available to a device. The more devices that are attached to a collision domain, the greater the chances of collisions; this results in lower bandwidth and performance for each device attached to the collision domain. Bridges and switches terminate the physical signal path of a collision domain, allowing you to segment separate collision domains, breaking them up into multiple smaller pieces to provide more bandwidth per user within the new collision domains formed.
Question 9
Which two statements about switch stacking are true? (Choose two)
  1. The stack is powered by a single power cable
  2. The switches are connected in a daisy-chain fashion
  3. The first and last switch in the stack must be connected to one another
  4. The switches are connected by crossover cables
  5. The switches must be fully meshed
Correct answer: AB
Question 10
Which condition does the err-disabled status indicate on an Ethernet interface?
  1. There is a duplex mismatch.
  2. The device at the other end of the connection is powered off.
  3. The serial interface is disabled.
  4. The interface is configured with the shutdown command.
  5. Port security has disabled the interface.
  6. The interface is fully functioning.
Correct answer: E
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