CCNA And CCENT Practice Exam:

Cisco Switch Fundamentals (Exam #3)

Chris Bryant, CCIE #12933

Welcome to a new series of CCNA and CCENT practice exams and videos !

You'll find the answers at the bottom of the page, along with links to additional CCNA and CCNP practice exams, tutorials, videos, and more.

Let's get to the questions!

1. Which of the following issues does "router on a stick" resolve?

A. Duplicate IP addresses on hosts in same VLAN

B. Switches will not forward frames to unknown broadcast addresses

C. Routers will not forward broadcasts

D. Layer 2 switches can't route traffic

 

2. There are three VLANs on your switch (10, 20 and 30) in addition to the default VLAN. A host in VLAN 10 sends a broadcast. Hosts in how many of the other VLANs will receive that broadcast?

A. Zero

B. One

C. Two

D. Three

E. Four

3. A frame is about to be sent over a trunk. What term describes the method used to "stamp" that frame with the destination VLAN number?

 

4. Which of the following are trunking protocols?

A. dot1q

B. q933a

C. ISL

D. ansi

E. LMI

F. CIR

 

5. Which of the following describes ISL?

A. industry standard trunking protocol

B. used to route inter-VLAN traffic

C. encapsulates the frame before transmission

D. is Cisco-proprietary

E. adds only a header to frames

 

Answers right after this brief, important message!

I'm Paying It Forward - To You!

My Famous CCNA Study Package Is Now Only $25 - And I'm Now Training CCNAs For $1 A Day In My On-Demand CCNA Boot Camp!

And now .. the answers!

1. "D". The "router on a stick" technique is sometimes necessary because L2 switches cannot route traffic.

With the popularity of L3 switches, we're seeing less and less ROAS - but it's still a good skill to have for your CCNA and CCNP exams.

 

2. "A" -- Zero. Only the other hosts in VLAN 10 will receive any broadcast sent by a host in that particular VLAN.

 

3. Such frames are said to be tagged with a VLAN ID.

 

4. "A, C". Both IEEE 802.1q ("dot1q") and ISL are trunking protocols.

 

5. "C, D". ISL is the Cisco-proprietary trunking protocol that encapsulates every single frame that goes across the trunk.

Thanks for taking this practice exam - and for daily CCNA and CCNP exam links, visit and bookmark the Bulldog Blog today!

Visit these pages for hundreds of additional CCNA tutorials, videos, and practice exams!

CCNA Tutorials

My YouTube Cisco Certification Video Training Channel

CCNA And CCENT Practice Exams

CCNA Switching Practice Exam #1

I'm Paying It Forward - To You!

My Famous CCNA Study Package Is Now Only $25 - And I'm Now Training CCNAs For $1 A Day In My On-Demand CCNA Boot Camp!

To Your Success,

Chris Bryant

CCIE #12933

"The Computer Certification Bulldog"

chris@thebryantadvantage.com