SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Ethernet Technologies
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What is the maximum cabling distance for 10GBASE-CX4?
Cisco Express Forwarding
Fast Ethernet over 2 pairs EIA/TIA Category 5 UTP
15 metres
Flooding a frame with unknown destination MAC address out all ports assigned to the source port VLAN except the source port itself
2. What connectors can be used with GBIC modules?
SC fibre optic or RJ-45 UTP
Down - static access - trunk or tunnel
The Discard adjacency
Switch(config-if)#speed {10 | 100 | 1000 | auto}
3. What is FIB?
Forwarding Information Base
With MMF cables shorter than 100 metres (to prevent over-driving the far-end receiver) and with MMF cables longer than 300 metres (to lessen the effect of differential mode delay)
550 metres for 50 or 62.5 micron MMF; 10 km for 9 micron SMF
Switch(config)#errdisable detect cause l2ptguard
4. What is the content of TCAM Mask entries?
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
5. What is 10GBASE-X?
Cabling specifications for 10 Gigabit Ethernet
Trunk or dynamic
Creating the VLAN
R = LAN PHY; W = WAN PHY
6. What is the administrative mode of a switch port that carries transparent Layer 2 VPNs?
Layer 2 source and destination MAC addresses; Layer 3 Time-To-Live (TTL) value and header checksum
Tunnel
American National Standards Institute
From 30 seconds to 86 -400 seconds (24 hours)
7. What portion of the FIB contains the Layer 3 next-hop addresses for each entry together with the corresponding Layer 2 information?
American National Standards Institute
10 Gigabit Ethernet over 9 micron SMF (1310 nm serial laser)
Fast Ethernet over 62.5/125 micron multimode fibre (MMF) or 9 micron singlemode fibre (SMF)
The adjacency table
8. Displays the entire Forwarding Information Base (FIB)
Trunk
Switch#show ip cef
The CEF entry version number
Logical Operation Unit
9. When should CEF be disabled?
Switch(config)#errdisable detect cause dhcp-rate-limit
Switch#show ip cef {network} [{mask}] [longer-prefixes] [detail]
1 -2 on one end with 3 -6 on the other end
Only temporarily for debugging purposes
10. Creates an interface-range macro
Manually by administratively disabling and re-enabling the port
Logical Operation Unit
Switch(config)#define interface-range {macro-name} {type} {module}/{number} [- {number}] [ - {type} {module}/{number} ...]
The Layer 3 engine
11. What is the default duplex mode of a Gigabit Ethernet interface?
25 metres
Full duplex
A station must wait its turn to transmit; it can't transmit and receive at the same time
Cisco Express Forwarding
12. What mechanism does the TCAM provide for Layer 4 comparisons involving gt - lt - neq or range operators?
Switch(config)#errdisable detect cause {all | {cause-name}}
400 metres half duplex and 2000 metres full duplex
550 metres for 50 or 62.5 micron MMF; 10 km for 9 micron SMF
LOU registers
13. How are ternary combinations implemented?
Switch#show ip cef {network} [{mask}] [longer-prefixes] [detail]
Switch#show errdisable detect
300 seconds
With a mask value in addition to binary values to decide which keys in a table are relevant
14. How does the IEEE 802.3ae standard differ from its predecessors at the physical layer?
550 metres for 50 or 62.5 micron MMF; 10 km for 9 micron SMF
Switch(config)#mac address-table aging-time {seconds}
When the Spanning Tree Protocol (STP) has put the switch port in learning or forwarding state
10GbE operates only at full duplex
15. What is the maximum cabling distance for 1000BASE-ZX?
Full duplex
70 km for 9 micron SMF; 100 km for 8 micron SMF
LOU registers
Ingress queueing; Destination MAC lookup (CAM); Security ACL lookup (TCAM); QoS ACL lookup (TCAM); Egress queueing
16. What are the letters used with 10GBASE-X two-letter suffixes to specify the transceiver wavelengths?
400 metres half duplex and 2000 metres full duplex
S = Short; L = Long; E = Extra-long
Incomplete adjacency; Incomplete ARP resolution; Unsupported packet features; ICMP redirect; Packets destined to the router itself; IP options present; Access list evaluation failure; Fragmentation failure
A three-fold combination of 0 - 1 and X (don't care)
17. What combinations are TCAM entries composed of?
Layer 2 destination address changed to next-hop MAC address; Layer 2 source address changed to outbound interface MAC address; Layer 3 TTL decremented by 1; Layer 3 IP checksum recalculated; Layer 2 frame checksum recalculated
Value - Mask - and Result (VMR)
The Null adjacency
Switch(config)#interface range {type}{module}/{number} [- {number}] [ - {type}{module}/{number} ...]
18. What are the classes of Physical Media Dependent (PMD) interfaces defined by IEEE 802.3ae?
LAN PHY and WAN PHY
Switch#show mac address-table [address {mac-address}] [interface {interface}] [vlan {vlan}]
Switch(config)#errdisable recovery cause {all | {cause-name}}
From 30 seconds to 86 -400 seconds (24 hours)
19. What denotes the number of times the CEF table has been flushed and regenerated as a whole?
Switch(config)#mac address-table aging-time {seconds}
Switch(config-if)#no ip route-cache cef
Source MAC address; Port of arrival; VLAN; Time stamp
The CEF epoch number
20. Adds a static entry to the MAC address table
Switch(config)#mac address-table static {mac-address} vlan {vlan} interface {interface}
Down - static access - trunk or tunnel
7 100BASE-T2 full duplex; 6 100BASE-TX full duplex; 5 100BASE-T2 half duplex; 4 100BASE-T4; 3 100BASE-TX; 2 10BASE-T full duplex; 1 10BASE-T
Manually by administratively disabling and re-enabling the port
21. What is the maximum cabling distance for 10GBASE-LX4/LW4?
Trunk or dynamic
300 metres for 50 or 62.5 micron MMF; 10 km for 9 micron SMF
Listen to the first packet and put its resulting destination in the MLS cache; Route subsequent packets in the same flow based on the MLS cache
Switch#show cef not-cef-switched
22. What is a ternary combination?
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
23. Enables error-disable for errors with offering inline power
LAN PHY and WAN PHY
Interconnecting with existing Synchronous Optical Network (SONET) or Synchronous Digital Hierarchy (SDH) networks
15 metres
Switch(config)#errdisable detect cause ilpower
24. What information is stored in TCAM?
Wide-Wavelength Division Multiplexing
Switch(config-if)#no ip route-cache cef
Switch#show mac address-table [address {mac-address}] [interface {interface}] [vlan {vlan}]
Security and QoS ACLs
25. What is the prerequesite for creating a working SVI?
550 metres for 50 or 62.5 micron MMF; 10 km for 9 micron SMF
Switch#show errdisable recovery
Creating the VLAN
SC or MT-RJ
26. What is the operational mode of a switch port that carries traffic for multiple VLANs?
Cabling specification for 10 Mbps Ethernet over Unshielded Twisted Pair (UTP) cabling
Trunk
550 metres for 50 or 62.5 micron MMF; 10 km for 9 micron SMF
FIB with adjacency table
27. Enables automatic re-enabling of error-disabled ports
Switch(config)#errdisable recovery cause {all | {cause-name}}
R = LAN PHY; W = WAN PHY
Switch(config)#mac address-table aging-time {seconds}
Switch(config)#errdisable detect cause arp-inspection
28. What is the operational mode of a switch port that is a member of one VLAN?
Layer 2 source and destination MAC addresses; Layer 3 Time-To-Live (TTL) value and header checksum
10 Gigabit Ethernet over 9 micron SMF (1310 nm serial laser)
Static access
A proprietary connector with a high-data-rate copper cable with enhanced signal integrity and EMI performance
29. What are the common PMD types for 10 Gigabit Ethernet?
Ternary Content-Addressable Memory
FIB with adjacency table
Switch(config)#errdisable recovery cause {all | {cause-name}}
10GBASE-SR/SW - 10GBASE-LR/LW - 10GBASE-ER/EW - 10GBASE-LX4/LW4 - 10GBASE-CX4
30. Selects multiple switch port interfaces at the same time and enters interface configuration mode
Switch(config-if)#shutdown
Switch(config)#interface range {type}{module}/{number} [- {number}] [ - {type}{module}/{number} ...]
The Discard adjacency
Only temporarily for debugging purposes
31. What are the common cabling specifications for Gigabit Ethernet?
Switch(config)#errdisable detect cause link-flap
1000BASE-CX - 1000BASE-T - 1000-BASE-SX - 1000-BASE-LX/LH and 1000-BASE-ZX
Switch#show mac address-table static [address {mac-address}] [interface {interface}] [vlan {vlan}]
Switch(config)#errdisable detect cause arp-inspection
32. Configures a switch port with a static access VLAN assignment
Switch(config-if)#switchport access vlan {vlan}
Switch#clear mac address-table [dynamic] [address {mac-address}] [interface {interface}] [vlan {vlan}]
A name assigned to a ranges of interfaces
Switch#show errdisable detect
33. What is Cisco's old recommendation regarding switch port speed and duplex mode?
Switch#show cef drop
LAN PHY and WAN PHY
R = LAN PHY; W = WAN PHY
Configure the appropriate values manually on both ends of the link
34. What is the default duplex mode of a 10 Mbps Ethernet interface?
Switch(config-if)#duplex {auto | full | half}
Switch(config)#errdisable detect cause link-flap
Half duplex
The switch port falls back to default setting of half duplex
35. Displays CEF adjacency table information
Tunnel
Switch#clear mac address-table [dynamic] [address {mac-address}] [interface {interface}] [vlan {vlan}]
Static access
Switch#show adjacency [{interface}] [summary | detail]
36. Disables CEF operation on an interface
Switch(config-if)#no ip route-cache cef
Switch(config)#errdisable recovery cause {all | {cause-name}}
SVI
Switch#show interfaces status err-disabled
37. What is the maximum cabling distance for 10GBASE-ER/EW?
Forwarding Information Base
The Layer 3 engine
Switch(config)#errdisable detect cause link-flap
40 km
38. Specifies the timer for automatic re-enabling of error-disabled ports
Feature Manager (FM) and Switching Database Manager (SDM)
On
Switch(config)#errdisable recovery interval {seconds}
Gigabit Ethernet over 1 pair 8 or 9 micron SMF (1550 nm laser)
39. Enables error-disable for rate-limiting of DHCP snooping
100 metres
Interconnecting with existing Synchronous Optical Network (SONET) or Synchronous Digital Hierarchy (SDH) networks
Switch(config)#errdisable detect cause dhcp-rate-limit
On
40. What CEF adjacency is used when packets must be sent to the Layer 3 engine for further processing?
Electromagnetic Interference
Switch#show cef not-cef-switched
The Punt adjacency
Source MAC address; Port of arrival; VLAN; Time stamp
41. Enables error-disable when an STP BPDU is received from a root bridge on an unexpected port
Switch(config)#errdisable detect cause rootguard
R = LAN PHY; W = WAN PHY
Ternary Content-Addressable Memory
Layer 2 destination address changed to next-hop MAC address; Layer 2 source address changed to outbound interface MAC address; Layer 3 TTL decremented by 1; Layer 3 IP checksum recalculated; Layer 2 frame checksum recalculated
42. What is half duplex operation?
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
43. What fields are rewritten in hardware before a Layer 3 packet is switched to the to egress queue of a multilayer switch?
Native routed interface
Collision domain
Layer 2 source and destination MAC addresses; Layer 3 Time-To-Live (TTL) value and header checksum
The Layer 3 forwarding engine
44. What is WAN PHY used for?
Slow response times - low throughput - runts and other input errors on the switch ports
Interconnecting with existing Synchronous Optical Network (SONET) or Synchronous Digital Hierarchy (SDH) networks
IEEE 802.3z
Listen to the first packet and put its resulting destination in the MLS cache; Route subsequent packets in the same flow based on the MLS cache
45. What is the standard for 1000BASE-T?
Institute of Electrical and Electronics Engineers
With a mask value in addition to binary values to decide which keys in a table are relevant
IEEE 802.3ab
Source IP (/32); Destination IP (/32); Protocol (/16); ICMP code (/8); ICMP type (/4); IP type of service (ToS) (/8)
46. What is the name of the CEF engine that forwards packets in hardware?
LOU registers
Security and QoS ACLs
Cabling specifications for Gigabit Ethernet
The Layer 3 forwarding engine
47. Enables error-disable when trunking encapsulation is flapping from one type to another
Switch(config)#errdisable detect cause security-violation
Half duplex
Flooding a frame with unknown destination MAC address out all ports assigned to the source port VLAN except the source port itself
Switch(config)#errdisable detect cause dtp-flap
48. How is link duplex mode determined on Fast Ethernet links configured to autonegotiate?
Through exchange of information - which means that for one end to successfully negotiate duplex mode the other end must also be set to autonegotiate
Switch(config)#errdisable detect cause gbic-invalid
Dynamic
550 metres for 50 or 62.5 micron MMF; 10 km for 9 micron SMF
49. What is the TCAM Value and Mask for an IP access list?
Layer 3 routing information builds and pre-populates a single database of the entire network topology; All table lookups are performed in hardware with the longest matching destination used in forwarding
On
Source IP (/32); Destination IP (/32); Protocol (/16); IP ToS (/8)
Switch(config)#errdisable recovery cause {all | {cause-name}}
50. What is the operational mode of a switch port that carries transparent Layer 2 VPNs?
Tunnel
15 metres
400 metres half duplex and 2000 metres full duplex
CEF punt
Sorry!:) No result found.
Can you answer 50 questions in 15 minutes?
Let me suggest you:
Browse all subjects
Browse all tests
Most popular tests
Major Subjects
Tests & Exams
AP
CLEP
DSST
GRE
SAT
GMAT
Certifications
CISSP go to https://www.isc2.org/
PMP
ITIL
RHCE
MCTS
More...
IT Skills
Android Programming
Data Modeling
Objective C Programming
Basic Python Programming
Adobe Illustrator
More...
Business Skills
Advertising Techniques
Business Accounting Basics
Business Strategy
Human Resource Management
Marketing Basics
More...
Soft Skills
Body Language
People Skills
Public Speaking
Persuasion
Job Hunting And Resumes
More...
Vocabulary
GRE Vocab
SAT Vocab
TOEFL Essential Vocab
Basic English Words For All
Global Words You Should Know
Business English
More...
Languages
AP German Vocab
AP Latin Vocab
SAT Subject Test: French
Italian Survival
Norwegian Survival
More...
Engineering
Audio Engineering
Computer Science Engineering
Aerospace Engineering
Chemical Engineering
Structural Engineering
More...
Health Sciences
Basic Nursing Skills
Health Science Language Fundamentals
Veterinary Technology Medical Language
Cardiology
Clinical Surgery
More...
English
Grammar Fundamentals
Literary And Rhetorical Vocab
Elements Of Style Vocab
Introduction To English Major
Complete Advanced Sentences
Literature
Homonyms
More...
Math
Algebra Formulas
Basic Arithmetic: Measurements
Metric Conversions
Geometric Properties
Important Math Facts
Number Sense Vocab
Business Math
More...
Other Major Subjects
Science
Economics
History
Law
Performing-arts
Cooking
Logic & Reasoning
Trivia
Browse all subjects
Browse all tests
Most popular tests