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Exam 350-401 topic 1 question 392 discussion

Actual exam question from Cisco's 350-401
Question #: 392
Topic #: 1
[All 350-401 Questions]

In which two ways does TCAM differ from CAM? (Choose two.)

  • A. CAM is used to make Layer 2 forwarding decisions, and TCAM is used for Layer 3 address lookups.
  • B. CAM is used by routers for IP address lookups, and TCAM is used to make Layer 2 forwarding decisions.
  • C. CAM is used for software switching mechanisms, and TCAM is used for hardware switching mechanisms.
  • D. The MAC address table is contained in TCAM, and ACL and QoS information is stored in CAM.
  • E. The MAC address table is contained in CAM, and ACL and QoS information is stored in TCAM.
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Suggested Answer: AE 🗳️
by Ioannis34 at Jan. 4, 2023, 12:28 p.m.

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[Removed]
6 months, 1 week ago
Selected Answer: AE
A & E are correct
upvoted 1 times
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[Removed]
6 months, 2 weeks ago
A and E are correct, and i think that C is also correct. or maybe if we change the word "software" to "CPU" it will be correct. not sure about it
upvoted 1 times
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LanreDipeolu
1 year, 3 months ago
AE is the correct answer for this. Because of QoS storage in TCAM and Layer 3 address look-up by TCAM
upvoted 1 times
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ihateciscoreally
1 year, 3 months ago
A,C and E are correct here.
upvoted 1 times
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Colmenarez
1 year, 4 months ago
Selected Answer: AE
A & E are correct
upvoted 2 times
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Rowdy_47
1 year, 5 months ago
Selected Answer: AE
"The CAM table is the primary table used to make Layer 2 forwarding decisions." A- Correct, therefore B incorrect As frames arrive on switch ports, the source MAC addresses are learned and recorded in the CAM table. TCAM provides three results: 0, 1, and "don't care." TCAM is most useful for building tables for searching on longest matches such as IP routing tables organized by IP prefixes. The TCAM table stores ACL, QoS and other information generally associated with upper-layer processing. E- Correct, therefore D incorrect Correct answers are A and E https://community.cisco.com/t5/networking-knowledge-base/cam-content-addressable-memory-vs-tcam-ternary-content/ta-p/3107938
upvoted 1 times
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straightAnswers
1 year, 8 months ago
I think. C also correct options.
upvoted 2 times
HarwinderSekhon
1 year, 6 months ago
Agree. TCAM is hardware
upvoted 2 times
CCNPWILL
1 year, 1 month ago
CAM is not software switching mechanism though. its all forwarded using CEF. even layer 2. which is hardware.
upvoted 1 times
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[Removed]
6 months, 2 weeks ago
i also think so
upvoted 1 times
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Ioannis34
1 year, 11 months ago
provided answer is correct
upvoted 4 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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