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Unidirectional Link Detection (UDLD) Quiz

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1. UDLD works in …. and ….
1
- Layer 1 / Layer 2
- Layer 1 / Layer 3
- Layer 3 / Layer 4
- Layer 2 / Layer 3
2. How to enable UDLD in normal mode in a Cisco switch?
1
- udld on
- udld enable
- set udld
- udld run
3. Which Cisco udld command enables udld in aggressive mode on a port?
1
- udld enable
- udld port aggressive
- udld port enable
- udld aggressive
4. Which ones are True for BFD but not UDLD?
1
- Detects only directly connected link failures
- Works on layer 3
- Detects indirect link failures
- Works on layer 2
5. Fill in the blanks.
1

To reset all the ports disabled by UDLD, you can use command.
6. Which two are the modes of UDLD?
1
- Aggressive Mode
- Normal Mode
- Classic Mode
- Passive Mode

Loop Guard, Uplink Fast, Backbone Fast and UDLD

BPDU (Bridge Data Unit Protocol)

Back to: Unidirectional Link Detection (UDLD)

CCNA 200-301 v1.1

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Latest Lessons

SSH Port and Secure Shell
Part of: CCNA 200-301 v1.1
EIGRP vs OSPF
Link State vs Distance Vector Protocols
Part of: CCNA 200-301 v1.1
Unidirectional Link Detection (UDLD)
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Layer 2 vs Layer 3 Switch
Part of: CCNA 200-301 v1.1
BPDU (Bridge Data Unit Protocol)
Part of: CCNA 200-301 v1.1
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Part of: CCNA 200-301 v1.1
STP BPDU Filter
Part of: CCNA 200-301 v1.1
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