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Sample CSV Import > Untitled 17 > Flashcards

Untitled 17 Flashcards

1
Q

__ topology e.g. Ethernet, ATM defines the rules of communication across the __ topology.

A

Logical topology (layer 2), Physical topology (layer 1)

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2
Q

__ applies labels to packets, is commonly used to privately control international networks and is much cheaper than dedicated lines.

A

MPLS (Multi Protocol Label Switching)

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3
Q

__ are asynchronous devices that provide dial-in and dial-out connections.

A

Access servers

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4
Q

__ are distributed series of caching web servers, designed to improve performance and availability by bring data closer to the end user.

A

CDN (Content Distribution Network)

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5
Q

__ are the signaling protocols and __ is the packetization of your voice.

A

SIP and H.323 (which is wrapped around SIP for security), RTP (Real-time protocol)

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6
Q

__ checks a system’s patches, antivirus and local firewall. If the client passes, access is granted, otherwise it is placed on an isolated VLAN where patches and antivirus updates may be provided.

A

NAC (Network Access Control). It builds on top of 802.1X.

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7
Q

__ communications is where data is just sent with no need for start and stop bits. It is more efficient since there is no overhead (start/stop bits) but trasmitting and receiving stations need to be synchronized.

A

Synchronous

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8
Q

__ communications is where data is sent by changes in levels of voltage or current in a sequential fashion. There are start and stop sequence bits.

A

Asynchronous

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9
Q

__ DSL has the same upload and download rates.

A

SDSL (symmetric)

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10
Q

__ DSL is higher download than upload. __ is much higher download than upload rates.

A

ADSL (Asymmetric), VDSL (very-high-data-rate)

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11
Q

__ DSL is used to provide the last mile of T1 service and uses two copper twisted pairs.

A

HDSL (high-rate)

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12
Q

__ extends Fibre channel to Ethernet networks.

A

FCoE (Fibre Channel over Ethernet) since FC was designed for high-performance directly attached storage.

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13
Q

__ integration is a common and phased approach for VoIP. The more long-term solution is __ integration.

A

PSTN PBX/VoIP integration: combines traditional and VoIP networks
IP PBX/PSTN integration:users must use VoIP phones, IP PBX is a soft-switch that routes calls

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14
Q

__ topology e.g. Ethernet, ATM defines the rules of communication across the __ topology.

A

Logical topology (layer 2), Physical topology (layer 1)

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15
Q

__ applies labels to packets, is commonly used to privately control international networks and is much cheaper than dedicated lines.

A

MPLS (Multi Protocol Label Switching)

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16
Q

__ are asynchronous devices that provide dial-in and dial-out connections.

A

Access servers

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17
Q

__ are distributed series of caching web servers, designed to improve performance and availability by bring data closer to the end user.

A

CDN (Content Distribution Network)

18
Q

__ are the signaling protocols and __ is the packetization of your voice.

A

SIP and H.323 (which is wrapped around SIP for security), RTP (Real-time protocol)

19
Q

__ checks a system’s patches, antivirus and local firewall. If the client passes, access is granted, otherwise it is placed on an isolated VLAN where patches and antivirus updates may be provided.

A

NAC (Network Access Control). It builds on top of 802.1X.

20
Q

__ communications is where data is just sent with no need for start and stop bits. It is more efficient since there is no overhead (start/stop bits) but trasmitting and receiving stations need to be synchronized.

A

Synchronous

21
Q

__ communications is where data is sent by changes in levels of voltage or current in a sequential fashion. There are start and stop sequence bits.

A

Asynchronous

22
Q

__ DSL has the same upload and download rates.

A

SDSL (symmetric)

23
Q

__ DSL is higher download than upload. __ is much higher download than upload rates.

A

ADSL (Asymmetric), VDSL (very-high-data-rate)

24
Q

__ DSL is used to provide the last mile of T1 service and uses two copper twisted pairs.

A

HDSL (high-rate)

25
Q

__ extends Fibre channel to Ethernet networks.

A

FCoE (Fibre Channel over Ethernet) since FC was designed for high-performance directly attached storage.

26
Q

__ integration is a common and phased approach for VoIP. The more long-term solution is __ integration.

A

PSTN PBX/VoIP integration: combines traditional and VoIP networks
IP PBX/PSTN integration:users must use VoIP phones, IP PBX is a soft-switch that routes calls

27
Q

__ is a helpful network path troubleshooting tool that shows each of the nodes from a local machine to a destination.

A

traceroute, part of ICMP and built on ping

28
Q

__ is a layer 2 error correction for serial connections.

A

HDLC (High-Level Data Link Control)

29
Q

__ is a layer 2 polling method for serial connections

A

SDLC (Synchronous Data Link Control)

30
Q

__ is a simple, weak authentication mechanism that sends the password in plaintext. This can be mitigated by sending a hash of the password but this is still vulnerable to a replay attack.

A

PAP (Password Authentication Protocol)

31
Q

__ is a TCP-based logon system with robust AAA, which is why Diameter came out.

A

TACACS (Terminal Access Controller Access Control System)

32
Q

__ is a UDP-based logon system mostly focused on authentication and doesn’t focus much on authorization and accounting.

A

RADIUS (Remote Authentication Dial In User Service)

33
Q

__ is a vast improvement over WEP, requires NIC replacement and AP replacement or firmware upgrade (AES-CCMP).

A

WPA2

34
Q

__ is an authentication mechanism that uses challenge/response authentication and is not vulnerable to a replay attack.

A

CHAP (Challenge-Handshake Authentication Protocol). It should be used instead of PAP wherever possible.

35
Q

__ is an authentication mechanism, an extension to PPP and supports a variety of authentication protocols.

A

EAP (Extensible Authentication Protocol

36
Q

__ is an IETF standard (RFC 2401) for establishing encrypted communication between users and devices. It offers sophisticated replay attack prevention and was issued as an open standard thus promoting multivendor interoperability.

A

IPsec VPN

37
Q

__ is an improved version of RADIUS which focuses on all three areas of AAA.

A

Diameter

38
Q

__ is an improvement over WEP (Wired Equivalent Privacy) and compatible with WEP hardware (TKIP).

A

WPA (Wi-Fi Protected Access)

39
Q

__ is built on ping and used to plot the path a packet took through the network.

A

traceroute, part of ICMP and built on ping

40
Q

__ is layer 2 network level authentication to authenticate a device, using MAC addresses (can be spoofed) and/or certificates.

A

802.1X. Using both would be ideal.

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