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Flashcards

204-4

Thea Usita English 64 cards

Cards in this deck (64)

  1. 1__, __, and __ are a few of the factors that help a network administrator determine the health and usage of a network.Link activity
    Error rates
    Link Status
  2. 2It is commonly used to collect device information.SNMP (Simple Network Management Protocol)
  3. 3This must be implemented to enable port mirroring.Cisco Switch Port Analyzer
  4. 4These are often considered to be a safe and secure environmentLayer 2 LANs
  5. 5Today, with ___ and more sophisticated attacks, LANs have become more vulnerable.BYOD
  6. 6What are the common LAN attacks focused on gaining administrative access?CDP Reconnaissance Attack
    Telnet Attacks
  7. 7What are the common LAN attacks focused on disrupting network operation?MAC Address Table Flooding Attack
    VLAN Attacks
    DHCP Attacks
  8. 8The ___ is a proprietary Layer 2 link discovery protocol.Cisco Discovery Protocol (CDP)
  9. 9CDP information is sent out CDP-enabled ports in ___.periodic, unencrypted broadcasts
  10. 10__ is a type of network attack in which an intruder gathers information about the vulnerabilities of a device or system.Reconnaissance
  11. 11In this type of Telnet attack, The attacker may use a list of common passwords, dictionary words, and variations of words to discover the administrative password.Brute Force Password Attack
  12. 12In this type of Telnet attack, The attacker continuously requests Telnet connections in an attempt to render the Telnet service unavailable and preventing an administrator from remotely accessing a switch.Telnet DOS attack
  13. 13The switch compares the source packet information with that held in the __.DHCP Snooping Binding Database
  14. 14This method stores usernames and passwords locally in the Cisco router.Local AAA Authentication
  15. 15This method has the AAA server contain the usernames and password for all users.Server-Based AAA Authentication
  16. 16The ___ protocol/standard can be used to authenticate network devices on the corporate network.802.1X
  17. 17The ___ standard defines a port-based access control and authentication protocol.IEEE 802.1X
  18. 18This is usually the 802.1X-enabled port on the device. This requires access and responds to requests from switch.Client (Supplicant)
  19. 19This controls physical access to the network based on the authentication status of the client.Switch (Authenticator)
  20. 20This performs the actual authentication of the client.Authentication server
  21. 21___ was developed to allow administrators to manage nodes such as servers, workstations, routers, switches, and security appliances, on an IP network.Simple Network Management Protocol
    (SNMP)
  22. 22The SNMP manager can collect information from an SNMP agent using the ___ actionget
  23. 23The SNMP manager can change configurations on an agent using the ___ actionset
  24. 24SNMP agents can forward information directly to an NMS using ___traps
  25. 25SNMPv1 and SNMPv2c use ___ that control access to the MIB.community strings
  26. 26These are plaintext passwords.Community strings
  27. 27___ authenticates and encrypts packets over the network to provide secure access to devices.Simple Network Management Protocol version 3 (SNMPv3)
  28. 28___ is a feature that allows a switch to copy and send Ethernet frames from specific ports to the destination port connected to a packet analyzer.Port mirroring
  29. 29This is when traffic on a switch is mirrored to another port on the switchLocal SPAN
  30. 30This allows source and destination ports to be in different switches.Remote SPAN
  31. 31Network ___ are strong candidates for QoS mechanisms.congestion points
  32. 32__ or __ refers to the time it takes for a packet to travel from the source to the destination.Delay
    Latency
  33. 33A __ is a specific amount of time a specific process takes, such as how long it takes to place a bit on the transmission media.fixed delay
  34. 34A __ take an unspecified amount of time and is affected by factors such as how much traffic is being processed.variable delay
  35. 35__ is the variation in the delay of received packets.Jitter
  36. 36The __ must buffer packets and then play them out in a steady stream.playout delay buffer
  37. 37For losses as small as one packet, the ___ interpolates what it thinks the audio should be and no problem is audible to the user.digital signal processor (DSP)
  38. 38Cisco products use the RTP port range ___ to ___ to prioritize voice traffic.16384
    32767
  39. 39___ traffic tends to be unpredictable, inconsistent, and bursty compared to voice traffic.Video
  40. 40UDP ports, such as ___ are used for the Real-Time Streaming Protocol (RSTP).554
  41. 41___ is a congestion management tool that can buffer, prioritize, and, if required, reorder packets before being transmitted to the destination.Queuing
  42. 42In its simplest form, ___, involves buffering and forwarding of packets in the order of arrival.FIFO queuing
  43. 43___ is an automated scheduling method that provides fair bandwidth allocation to all network traffic.Weighted Fair Queueing (WFQ)
  44. 44All interfaces except those at E1 and below use __ [queuing] by default.FIFO
  45. 45Serial interfaces at E1 and below use __ by default.WFQ
  46. 46__ extends the standard WFQ functionality to provide support for user-defined traffic classes.Class-Based Weighted Fair Queuing (CBWFQ)
  47. 47While IntServ provides the highest guarantee of QoS, it is __ resource-intensive and therefore, limited in scalability.very
  48. 48DiffServ is __ resource-internsive and more scalable.less
  49. 49___ provides a way to deliver the end-to-end QoS that real-time applications require by explicitly managing network resources to provide QoS to specific user packet streams, sometimes called ___.InterServ
    microflows
  50. 50___ guarantees traffic characteristics, such as bandwidth, delay, and packet-loss rates, from end to end.Hard QoS
  51. 51IntServ uses a connection-oriented approach inherited from ___.telephony network design
  52. 52___ determines the class of traffic to which packets or frames belong.Classification
  53. 53___ means that we are adding a value to the packet header.Marking
  54. 54CoS Binary Value for Best-Effort Data000
  55. 55CoS Binary Value for Medium-Priority Data001
  56. 56CoS Binary Value for High-Priority Data010
  57. 57CoS Binary Value for Call Signaling011
  58. 58CoS Binary Value for Videoconferencing100
  59. 59CoS Binary Value for Voice bearer (voice traffic)101
  60. 60Reserved CoS Binary Values110
    111
  61. 61Traffic should be classified and marked as close to its ___ as technically and administratively feasible.source
  62. 62Cisco IOS QoS includes ___ as a possible congestion avoidance solution.Weighted Random Early Detection (WRED)
  63. 63___ retains excess packets in a queue and then schedules the excess for later transmission over increments of time.Traffic shaping
  64. 64___ is commonly implemented by service providers to enforce a contracted customer information rate (CIR).Policing

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Flashcards on 204-4, created by Thea Usita on 25/05/2018.
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