ExamTopics Logo
Mail Us[email protected]
Menu
Cisco Discussions
exam questions

Exam 350-401 All Questions

View all questions & answers for the 350-401 exam
Go to Exam

Exam 350-401 topic 1 question 36 discussion

Actual exam question from Cisco's 350-401
Question #: 36
Topic #: 1
[All 350-401 Questions]

What is the difference between the MAC address table and TCAM?

  • A. TCAM is used to make L2 forwarding decisions. CAM is used to build routing tables.
  • B. Router prefix lookups happen in CAM. MAC address table lookups happen in TCAM.
  • C. The MAC address table supports partial matches. TCAM requires an exact match.
  • D. The MAC address table is contained in CAM. ACL and QoS information is stored in TCAM.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by arieldesamachado at April 19, 2021, 1:46 a.m.

Comments

Chosen Answer:
This is a voting comment (?). It is better to Upvote an existing comment if you don't have anything to add.
Switch to a voting comment New
Submit Cancel
Rockford
Highly Voted 3 years, 11 months ago
There's a typo on D, should read "MAC are stored in CAM not TCAM...
upvoted 19 times
diegodavid82
3 years, 9 months ago
Yes, the answer have a type mistake, in the first part is MAC not TCAM.
upvoted 3 times
...
raizer
3 years, 7 months ago
yes, agree with D as correct answer. When using Ternary Content Addressable Memory (TCAM) inside routers it’s used for faster address lookup that enables fast routing. In switches Content Addressable Memory (CAM) is used for building and lookup of mac address table that enables L2 forwarding decisions. Besides Longest-Prefix Matching, TCAM in today’s routers and multilayer Switch devices are used to store ACL, QoS and other things from upper-layer processing.
upvoted 1 times
...
certtaker202
3 years, 8 months ago
Absolutely agree with the typo.
upvoted 2 times
...
wwwwaaaa
3 years, 4 months ago
They are saying "contained" which is not wrong. You are right, MACs are in CAM and CAM contained in TCAM, and all of us are winners
upvoted 3 times
...
...
arieldesamachado
Highly Voted 4 years ago
the correct answer is B
upvoted 11 times
andy_doesnt_like_uucp
1 year, 1 month ago
wrong. https://notes.networklessons.com/memory-cam-and-tcam#:~:text=Now%20applying%20this%20to%20networking%20devices%2C%20when%20looking%20up%20an%20address%20in%20the%20MAC%20address%20table%2C
upvoted 1 times
...
noov
4 years ago
i think so
upvoted 1 times
...
...
victormune
Most Recent 10 months ago
D is the correct answer!, CAM is for exact match based searching. For example – the MAC address table whilst TCAM is for longest match searching eg acl or ip routing
upvoted 1 times
...
[Removed]
11 months, 2 weeks ago
Selected Answer: D
D is correct
upvoted 1 times
...
secretuser
1 year ago
Mac addresses are stored in the CAM. ACL and QOS are TCAM.
upvoted 1 times
...
andy_doesnt_like_uucp
1 year, 1 month ago
B - no way (see link below). D is OK
upvoted 1 times
...
Dudu84
1 year, 5 months ago
D is the correct answer https://www.ciscopress.com/articles/article.asp?p=101629&seqNum=4
upvoted 1 times
...
Johalobe
1 year, 7 months ago
Selected Answer: D
Correct answer is D
upvoted 2 times
...
CCNPWILL
1 year, 9 months ago
Correct answer is D.
upvoted 1 times
...
anaz691011
1 year, 9 months ago
which one is good
upvoted 1 times
...
rogue_user
1 year, 10 months ago
Selected Answer: D
CAM requires an exact match to return a result. This means that the value that is being searched for (in binary) must contain either 0s or 1s. TCAM does not require an exact match, and is queried using 0s, 1s, and Xs, where X essentially means “anything” (that is, either 0 or 1). It's kind of like a wildcard state.
upvoted 3 times
...
techriese
1 year, 10 months ago
Selected Answer: D
D is correct for me
upvoted 2 times
...
helmerpach
1 year, 10 months ago
I took the exam yesterday and passed it. I confirm the question as it appears in the exam. It is not the administrator's fault.
upvoted 1 times
...
Blue_Water
2 years ago
Selected Answer: D
Correct is D
upvoted 2 times
...
Chiaretta
2 years ago
Selected Answer: D
D is the correct answer
upvoted 2 times
...
paulosrsf
2 years, 1 month ago
Selected Answer: D
Correct is D. CAM contains the MAC address table and their VLANS. TCAM is used for ACL and QoS purposes. TCAM is the table that supports partial matches, for ACL purposes. People answering option B as correct are badly wrong. Routing lookups are made in RIB, wich is the routing database.
upvoted 3 times
...
Chiaretta
2 years, 2 months ago
Selected Answer: D
CAM stores only MAC addresses.
upvoted 2 times
...
Load full discussion...
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel
exam
Someone Bought Contributor Access for:
SY0-701
London, 1 minute ago