Exam 200-301 topic 1 question 70 discussion

Actual exam question from Cisco's 200-301

Question #: 70
Topic #: 1

[All 200-301 Questions]

What are two functions of a Layer 2 switch? (Choose two.)

A. acts as a central point for association and authentication servers
B. selects the best route between networks on a WAN
C. moves packets within a VLAN
D. moves packets between different VLANs
E. makes forwarding decisions based on the MAC address of a packet

Show Suggested Answer

Suggested Answer: CE 🗳️

by ZUMY at Sept. 4, 2021, 10:29 a.m.

Comments

Submit Cancel

ismatdmour

Highly Voted 3 years, 5 months ago

Selected Answer: CE

C and E. Little confusion at first about E because of the use of the word "Packet" which is a layer 3 term rather than using "Frame" for a layer 2 concept. However, we need to remember that packet is a general term that is also used to replace other terms like a "frame" of other layers. CISCO questions like this tend to use it as well. Also, a L3 packet encapsulates a L2 frame which in turn embed a frame.

upvoted 16 times

PaddyInNZ

1 year, 7 months ago

Ah, a L3 packet does NOT encapsulate a L2 frame.

upvoted 2 times

squagmire

1 year, 5 months ago

its kind of the opposite, right? A packet is encapsulated by Layer 2, which turns into a Frame. Correct me if im wrong

upvoted 1 times

Ineedicecreamdaily

10 months, 3 weeks ago

@squagmire You are right. The Layer 3 (L3) packet, such as an IP packet, is encapsulated within a Layer 2 (L2) frame, such as Ethernet. This means the L2 frame contains the L3 packet, and that's how data is transmitted across local networks or physical networks.

upvoted 1 times

...