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CompTIA Network+ N10-007 Certification Guide
Chapter 4 Ethernet Technology
1) A switch in full-duplex mode does not use CSMA/CD.
2) What is the minimum media type that must be used to run 1000BASE-T?
A) Cat 3
B) Cat 5
C) Cat 5e
D) a10 Base 2
3) A more efficient design which involves the logical separation of a switch ports into different
broadcast domains is known as a ________.
A) subnet
B) collision domain
C) virtual local-area network (VLAN)
D) LAN
4) How many bytes are in an IEEE 802.1Q VLAN tag?
A) 2
B) 4
C) 6
D) 8
2
5) How does a switch prevent loops?
A) IEEE 802.1Q
B) IEEE 802.1D
C) IEEE 802.11
D) IEEE 802.3
6) How is a switch elected as a root bridge for spanning tree if the bridge priorities are the same?
A) The switch with the lowest IP address will become the root bridge.
B) The switch with the lowest MAC address will become the root bridge.
C) The switch with the highest MAC address will become the root bridge.
D) The switch with the highest IP address will become the root bridge.
7) Match the link speeds on the left with the correct STP port cost on the right.
A) A1, B2, C3, D4
B) A2, B3, C4, D1
C) A3, B2, C4, D1
D) A3, B4, C1, D2
8) An IEEE 802.1D port goes through four states when transitioning to the forwarding state.
3
What is the correct order?
A) Blocking, learning, listening, forwarding
B) Learning, listening, blocking, forwarding
C) Blocking, listening, learning, forwarding
D) Listening, blocking, learning, forwarding
9) What is the IEEE standard for PoE?
A) IEEE 802.1Q
B) IEEE 802.1D
C) IEEE 802.11
D) IEEE 802.3af
10) To have effective port monitoring and see all traffic on the network, which of the following
needs to be configured?
A) STP
B) Root bridge
C) Listening
D) Mirroring
11) You can configure user authentication at Layer 2 of the OSI. What IEEE standard would you
use for this?
A) IEEE 802.1X
B) IEEE 802.1D
C) IEEE 802.2x
D) IEEE 802.3af
12) What type of media is used using the 100Base-FX Ethernet standard?
A) MMF
B) SMF
C) Category 5e
D) Category 6a
13) What is the name of a Layer 2 connection that supports transporting multiple VLANs on the
same link between devices?
A) Access port
B) Trunk port
C) EtherChannel port
D) Multimode port
14) What is the name of a VLAN that is transported over a trunk port without an 802.1Q tag?
A) Primary
B) Tagless
C) Native
D) Basic
15) What IEEE standard defines the Link Aggregation Control Protocol (LACP)?
A) 802.1X
B) 802.1af
C) 802.3at
D) 802.3ad
16) Which Cisco IOS switch command is used to configure the use of LACP on an interface?
A) channel-group group-num mode mode
B) lacp-group group-num mode mode
C) lacp number mode mode
D) etherchannel-group group-num
17) What is the maximum number of watts that is supported in the IEEE 802.3at standard?
A) 15.4
B) 32.4
C) 50.4
D) 34.5
18) What is the IEEE standard that is used to enforce user authentication?
A) 802.11i
B) 802.2i
C) 802.1X
D) 802.3
19) Which component of IEEE 802.1X represents the device that wants to gain access to the
network?
A) Client
B) Authenticator
C) User agent
D) Supplicant
20) What is the name of the Cisco's initial proprietary first-hop redundancy protocol?
A) HSRP
B) GLBP
C) VRRP
D) CRBP
21) When uplinking a switch, it is common to use interface converters such as GBICs. What is
another common name for these various interface converters?
A) Transceivers
B) TOSLINK
C) Hub interface
D) Bus interface gate array
22) Which media types are associated with 10GBASE-T?
A) MMF
B) SMF
C) Cat 6a
D) Cat 5e
E) Cat 7
23) Ethernet standard 1000BASE-SX uses SMF and has a distance limitation of 5km. What is
the bandwidth capacity of 1000BASE-SX?
A) 10Mbps
B) 100Mbps
C) 1Gbps
D) 100Gbps
E) 1000Gbps
