Test your basic knowledge |

Ethernet Technologies

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 a SVI?
Switch(config)#errdisable detect cause dtp-flap
The Null adjacency
Switched virtual interface (SVI)
Switch(config)#interface vlan {vlan-id}

2. Enables automatic re-enabling of error-disabled ports
Switch(config)#errdisable recovery cause {all | {cause-name}}
Switch#show interfaces {interface} switchport
Full duplex
Switch(config)#errdisable detect cause loopback

3. Configures the maximum ageing time for entries in the MAC address table
Switch(config)#mac address-table aging-time {seconds}
The Punt adjacency
550 metres for 50 or 62.5 micron MMF; 10 km for 9 micron SMF
Value - Mask - and Result (VMR)

4. What is CAM?
Source IP (/32); Destination IP (/32); Protocol (/16); IP ToS (/8)
40 km
Content-Addressable Memory
Static access

5. What is the name of a Layer 3 physical interface on a switch?
Switch(config)#errdisable detect cause arp-inspection
In TCAM Value entries
Native routed interface
Half duplex

6. What is the default age-out time for stale entries in the CAM table?
Accelerated CEF (aCEF)
300 seconds
Static access
When one station transmits at the same time as another on a shared medium

7. What is the standard for Gigabit Ethernet (1000 Mbps)?
Electromagnetic Interference
The table of learned MAC addresses - ports - and VLAN information
LC - MT-RJ or RJ-45
IEEE 802.3z

8. Adds a static entry to the MAC address table
Switch#show interfaces {interface}
Tunnel
Switch(config-if)#switchport access vlan {vlan}
Switch(config)#mac address-table static {mac-address} vlan {vlan} interface {interface}

9. What is the TCAM Value and Mask for an IPX access list?
300 seconds
Switch(config)#define interface-range {macro-name} {type} {module}/{number} [- {number}] [ - {type} {module}/{number} ...]
Source IPX network (/32); Destination IPX network (/32); Destination node (/48); IPX packet type (/16)
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

10. Enables error-disable for errors with dynamic ARP inspection
Switch(config)#errdisable detect cause arp-inspection
IEEE 802.3ab
Forwarding Information Base
Half duplex

11. Enables error-disable when trunking encapsulation is flapping from one type to another
Switch#show interfaces {interface}
Switch(config)#errdisable detect cause dtp-flap
Switch(config-if)#duplex {auto | full | half}
Switch#show mac address-table dynamic [address {mac-address}] [interface {interface}] [vlan {vlan}]

12. What CEF optimisation technique cache FIB entries in switch line cards?
Through exchange of information - which means that for one end to successfully negotiate duplex mode the other end must also be set to autonegotiate
Accelerated CEF (aCEF)
Only temporarily for debugging purposes
Switch(config)#mac address-table static {mac-address} vlan {vlan} interface {interface}

13. What is 10GBASE-SR/SW?
LOU registers
10 Gigabit Ethernet over 50 or 62.5 micron MMF (850 nm serial laser)
SC fibre optic or RJ-45 UTP
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

14. Creates a switched virtual interface (SVI) and enters interface configuration mode
CEF glean
Switch(config-if)#switchport access vlan {vlan}
Switch(config)#define interface-range {macro-name} {type} {module}/{number} [- {number}] [ - {type} {module}/{number} ...]
Switch(config)#interface vlan {vlan-id}

15. What is the standard for 1000BASE-T?
Switch(config)#no ip cef
IEEE 802.3ab
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
A station must wait its turn to transmit; it can't transmit and receive at the same time

16. What are the reasons for packets being punted by CEF?
The CEF epoch number
Switch(config)#errdisable detect cause rootguard
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
IEEE 802.3ae

17. Enables error-disable when a storm control threshold has been exceeded on a port
Switch(config)#errdisable detect cause storm-control
With a mask value in addition to binary values to decide which keys in a table are relevant
400 metres half duplex and 2000 metres full duplex
When the Spanning Tree Protocol (STP) has put the switch port in learning or forwarding state

18. What is an interface-range macro?
When there are more access list entries and Layer 4 operations than available Mask/Value and LOU entries
A name assigned to a ranges of interfaces
Gigabit Ethernet over 1 pair 8 or 9 micron SMF (1550 nm laser)
The CEF entry version number

19. What is the maximum cabling distance for Fast Ethernet over 62.5/125 micron multimode fibre?
Process the first packet in a traffic flow to determine the destination
Switch#show mac address-table count [address {mac-address}] [interface {interface}] [vlan {vlan}]
400 metres half duplex and 2000 metres full duplex
The CEF epoch number

20. Enables error-disable for errors with offering inline power
Source MAC address; Port of arrival; VLAN; Time stamp
Wide-Wavelength Division Multiplexing
Switch(config)#errdisable detect cause ilpower
Interconnecting with existing Synchronous Optical Network (SONET) or Synchronous Digital Hierarchy (SDH) networks

21. Enables error-disable when an STP BPDU is received from a root bridge on an unexpected port
Numeric values that represent what action to take after the TCAM lookup occurs
Switch(config)#errdisable detect cause rootguard
Encapsulation failure; Unresolved address; Unsupported protocol; No valid route; No valid adjacency; Checksum error
Switch(config-if)#switchport access vlan {vlan}

22. What is 1000BASE-SX?
Gigabit Ethernet over 1 pair 50 or 62.5 micron MMF (850 nm laser)
Switch#show running-config interface {interface}
Static access or trunk
Source IP (/32) - Destination IP (/32) - Protocol (/16) - IP ToS (/8) - Source port (/16) - Source operator (/4) - Destination port (/16) - Destination operator (/4)

23. What is TCAM?
Switch(config)#errdisable recovery interval {seconds}
Ternary Content-Addressable Memory
SC or MT-RJ
Switch(config)#errdisable detect cause security-violation

24. What is the timer range for automatic re-enabling of error-disabled ports?
From 30 seconds to 86 -400 seconds (24 hours)
Trunk
10 Gigabit Ethernet over copper CX4 with Infiniband connectors
Configure the appropriate values manually on both ends of the link

25. Displays a list of all interfaces in an error-disabled state
Switch#show interfaces status err-disabled
Switch(config)#errdisable detect cause bpduguard
When the Spanning Tree Protocol (STP) has put the switch port in learning or forwarding state
Switch(config)#errdisable detect cause {all | {cause-name}}

26. Displays error-disabled detection status
70 km for 9 micron SMF; 100 km for 8 micron SMF
Per port collision domains; Full duplex mode; Dedicated bandwidth; Error detection; Broadcast thresholds; Intelligent filtering and forwarding
15 metres
Switch#show errdisable detect

27. What is a ternary combination?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

28. What is 1000BASE-X?
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
Cabling specifications for Gigabit Ethernet
10 Gigabit Ethernet over 9 micron SMF (1550 nm serial laser)
Accelerated CEF (aCEF)

29. What is the standard for Fast Ethernet (100 Mbps)?
Switch(config)#errdisable detect cause arp-inspection
In TCAM Value entries
IEEE 802.3u
1000BASE-CX - 1000BASE-T - 1000-BASE-SX - 1000-BASE-LX/LH and 1000-BASE-ZX

30. What is the maximum cabling distance for 10GBASE-SR/SW?
Only temporarily for debugging purposes
Switch#show mac address-table static [address {mac-address}] [interface {interface}] [vlan {vlan}]
66-300 metres for 50 micron MMF; 33 metres for 62.5 micron MMF
Trunk

31. What are the names of the two basic generations of MLS?
10 Gigabit Ethernet over 9 micron SMF (1550 nm serial laser)
Ingress queueing; Destination MAC lookup (CAM); Destination IP lookup (FIB); Security ACL lookup (TCAM); QoS ACL lookup (TCAM); Layer 3 packet rewrite; Egress queueing
CEF glean
Route caching and topology based

32. Creates an interface-range macro
40 km
IEEE 802.3z
Switch(config)#define interface-range {macro-name} {type} {module}/{number} [- {number}] [ - {type} {module}/{number} ...]
Interconnecting switches in a campus network

33. How do Layer 2 switches provide isolation between hosts?
Switch(config)#errdisable detect cause rootguard
Native routed interface
Per port collision domains; Full duplex mode; Dedicated bandwidth; Error detection; Broadcast thresholds; Intelligent filtering and forwarding
Switch(config-if)#no ip route-cache cef

34. Enables error-disable when the Port Aggregation Protocol (PAgP) is flapping
Logical Operation Unit
Switch#show mac address-table static [address {mac-address}] [interface {interface}] [vlan {vlan}]
Switch(config)#errdisable detect cause pagp-flap
10 Gigabit Ethernet over 50 or 62.5 micron MMF (850 nm serial laser)

35. What is the name of the CEF engine that forwards packets in hardware?
Cabling specifications for 10 Gigabit Ethernet
Switch#show errdisable recovery
Switch#show cef drop
The Layer 3 forwarding engine

36. What is 1000BASE-T?
Cabling specifications for Gigabit Ethernet
Interconnecting switches in a campus network
Gigabit Ethernet over 4 pairs EIA/TIA Category 5 UTP
25 metres

37. What is the TCAM Value and Mask for an ICMP access list?
Source IP (/32); Destination IP (/32); Protocol (/16); ICMP code (/8); ICMP type (/4); IP type of service (ToS) (/8)
FIB with adjacency table
Fast Ethernet over 2 pairs EIA/TIA Category 3 - 4 - 5 UTP
Switch(config)#errdisable detect cause dtp-flap

38. What is the maximum cabling distance for Ethernet - Fast Ethernet and Gigabit Ethernet over UTP cabling?
100 metres
Switch#show cef not-cef-switched
Ingress queueing; Destination MAC lookup (CAM); Destination IP lookup (FIB); Security ACL lookup (TCAM); QoS ACL lookup (TCAM); Layer 3 packet rewrite; Egress queueing
Compiling Access Control Entries (ACE) into the TCAM table

39. Sets the administrative mode of a switch port to access
A switch port that has been shut down automatically due to a serious error condition
Static access or dynamic
Switch(config-if)#switchport mode access
On

40. What is the default duplex mode of a Gigabit Ethernet interface?
70 km for 9 micron SMF; 100 km for 8 micron SMF
Full duplex
ARP requests and replies; IP packets requiring an ICMP response; IP broadcasts to be relayed; Routing protocol updates; CDP packets; Packets needing encryption; Packets triggering NAT; Other non-IP packets
Switch(config)#errdisable detect cause channel-misconfig

41. What information is stored in CAM?
Switch(config)#errdisable detect cause dhcp-rate-limit
The Layer 3 forwarding engine
300 seconds
The table of learned MAC addresses - ports - and VLAN information

42. Displays administrative and operational status for a specified interface
Gigabit Ethernet over 1 pair 8 or 9 micron SMF (1550 nm laser)
Tunnel
Switch#show interfaces {interface}
Accelerated CEF (aCEF)

43. Enables error-disable detection
Switch(config)#errdisable detect cause {all | {cause-name}}
Static access or dynamic
Distributed CEF (dCEF)
Off

44. Displays dynamic CAM table entries
Switch#show mac address-table dynamic [address {mac-address}] [interface {interface}] [vlan {vlan}]
Institute of Electrical and Electronics Engineers
Switch(config-if)#switchport access vlan {vlan}
Switch(config)#interface range {type}{module}/{number} [- {number}] [ - {type}{module}/{number} ...]

45. What are the operational modes of a Layer 2 switched interface?
Down - static access - trunk or tunnel
Source IP (/32); Destination IP (/32); Protocol (/16); IP ToS (/8); IGMP message type (/8)
Switch(config)#define interface-range {macro-name} {type} {module}/{number} [- {number}] [ - {type} {module}/{number} ...]
When there are more access list entries and Layer 4 operations than available Mask/Value and LOU entries

46. What is WWDM?
Tunnel
Switch(config)#errdisable detect cause arp-inspection
Wide-Wavelength Division Multiplexing
Off

47. What is the administrative mode of a switch port that carries traffic for multiple VLANs?
Trunk or dynamic
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
Switch#show interfaces status
Full duplex

48. What is the maximum cabling distance for 10GBASE-ER/EW?
40 km
Feature Manager (FM) and Switching Database Manager (SDM)
LOU registers
In TCAM Value entries

49. When do collisions occur?
When one station transmits at the same time as another on a shared medium
XENPAK - X2 - or SFP+
Switch#show adjacency [{interface}] [summary | detail]
Per port collision domains; Full duplex mode; Dedicated bandwidth; Error detection; Broadcast thresholds; Intelligent filtering and forwarding

50. What is CEF?
Source IPX network (/32); Destination IPX network (/32); Destination node (/48); IPX packet type (/16)
Cisco Express Forwarding
Half duplex
Switch(config)#errdisable detect cause {all | {cause-name}}

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

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

Test your basic knowledge |

Ethernet Technologies

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

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests