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Network+ N10-008 > Homework Review > Flashcards

Homework Review Flashcards

1
Q

Which physical layer transceiver module standard is the oldest?

A

GBIC

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2
Q

Which layer of the OSI model provides an entry point for programs to access the network infrastructure?

A

Application Layer

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3
Q

Which layers do hubs operate on?

A

Layer 1 (physical)

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4
Q

Which layers do bridges operate on?

A

Layer 2 (Data Link)

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5
Q

Which IEEE Ethernet specification defines a maximum distance of 550 meters at 1 Gbps?

A

1000BaseSX

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6
Q

Which layer of the OSI model does agreement and translation occur?

A

Layer 6 (Presentation)

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7
Q

How many wires are used in a 100BaseTX UTP transmission?

A

Four

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8
Q

What role does encapsulation perform during communications?

A

Describes how data should be packaged

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9
Q

Which layer of the OSI model is responsible for code and character-set conversion as well as recognizing data formats?

A

Layer 6 (Presentation)

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10
Q

Reliable delivery of data packets is associated with what layer of the OSI model?

A

Layer 4 (Transport)

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11
Q

A large number of packet collisions, late collisions, cyclical redundancy checks errors, and runt frames are a sign of what?

A

Duplex mismatch

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12
Q

Which layer of the OSI model is a PDU referred to as a frame?

A

Layer 2 (Data Link)

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13
Q

What can cause a computer system to have sporadic connectivity to network services?

A

Duplicate IP

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14
Q

During an ARP, if a computer isnt receiving traffic, what could be the problem?

A

Duplicate MAC Address

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15
Q

What kind of utility is a TCP Dump?

A

Packet Analyzer

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16
Q

Internet Protocol (IP) operates in which layer of the OSI Model?

A

Layer 3 (Network)

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17
Q

What is a demarcation point?

A

Line of responsibility between a service provider and a customer.

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18
Q

What does the mac address FF:FF:FF:FF:FF:FF indicate?

A

Multicast traffic

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19
Q

What is the Class A private address range?

A

10.0.0.0 - 10.255.255.255

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20
Q

What is the class B private address range?

A

172.16.0.0 - 172.31.255.255

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21
Q

What is the class C private address range?

A

192.168.0.0 - 192.168.255.255

22
Q

What is the APIPA address range?

A

169.254.0.0 - 169.254.255.255

23
Q

What is step 1 of the troubleshooting methodology?

A

ID problem

24
Q

What is step 2 of the troubleshooting methodology?

A

Establish theory of probably cause

25
Q

What is step 3 of the troubleshooting methodology?

A

Test theory to determine the cause

26
Q

What is step 4 of the troubleshooting methodology?

A

Establish plan of action to resolve the problem

27
Q

What is step 5 of the troubleshooting methodology?

A

Implement the solution or escalate as necessary

28
Q

What is step 6 of the troubleshooting methodology?

A

Verify full system functionality and, if applicable, implement preventive measures

29
Q

What is step 7 of the troubleshooting methodology?

A

Document findings, actions, and outcomes

30
Q

How big is a payload?

A

1500 bytes

31
Q

What is a Link-state routing protocol?

A

A type of routing protocol that calculates the best path between source and destination nodes based on a map of network connectivity between nodes.

32
Q

What is a distance-vector routing protocol?

A

A type of routing protocol that determines the best route for data packets based on the lowest number of hops.

33
Q

A manually configured routing table entry is referred to as what?

A

A static route

34
Q

Which type of equipment should be used for telecommunications equipment and have an open design?

A

2/4 post racks

35
Q

What is ARP poisoning?

A

ARP poisoning reroutes data and allows an attacker to intercept packets of data intended for another recipient.

36
Q

What is a BCP (business continuity plan)?

A

A BCP is a plan to help ensure that business processes can continue during a time of emergency or disaster.

37
Q

What is DOCSIS (Data Over Cable Service Interface Specification)?

A

DOCSIS is an international telecommunications standard that permits the addition of high-bandwidth data transfer to an existing cable television system. “Cable Modems”

38
Q

What is channel bonding?

A

Channel bonding is used to reduce redundancy or increase throughput, directly affecting the connection speed of a wireless connection.

39
Q

What is the class A IP address range?

A

0-127

40
Q

What is the class B IP address range?

A

128-191

41
Q

What is the class C IP address range?

A

191-223

42
Q

What refers to a system containing mappings of domain names to various types of data, such as numerical IP addresses?

A

DNS - Domain Name System

43
Q

What is a trunk?

A

A physical connection used to carry multiple logical connections.

44
Q

What do IPv6 multicast addresses begin with?

A

FF

45
Q

What is a forward DNS lookup?

A

A forward DNS uses the domain name and returns with the appropriate IP. It obtains the IP.

46
Q

What is a reverse lookup?

A

Reverse lookup uses the IP address and returns with the domain name. It obtains the domain name.

47
Q

DNS record that specifies a list of additional name servers on a domain is called what?

A

NS - NS record type identifies other name servers for the domain.

48
Q

Which protocol is built into Microsoft servers for remote access purposes?

A

RDP - Remote Desktop Protocol

49
Q

Which devices provide the lowest latency and highest bandwidth for connectivity?

A

Switches

50
Q

Which protocol is used to send emails?

A

SMTP - Simple Mail Transfer Protocol

Network+ N10-008 (3 decks)

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