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Revisão

Lucas Andrade Portugiesisch 110 Karten

Karten in diesem Stapel (110)

  1. 1What is the disadvantage of a tree network? A. Nodes at higher layers will cause more serious network problems if they become faulty. B. The tree network uses a hierarchical star structure C. The tree network can quickly connect multiple star networks together. D. Itis easy to expand the network scaleA
    Módulo 1
  2. 2Which functions does a firewall provide?⬜ A. Isolates networks of different security levels. B. Uses security policies to implement access control between networks of different security levels. C. Implements remote access D. Implements data encryption and virtual private network services. E. Implements network address translationABCDE
    Módulo 1
  3. 3A star network is robust and therefore not prone to faults.WRONG
    Módulo 1
  4. 4A router can break broadcast domains.RIGHT
    Módulo 1
  5. 5The Open System Interconnection (OSI) reference model divides a network into seven layers. Which of the following lists the seven layers in the correct order, from bottom to top? A. Physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer B. Physical layer, data link layer, network layer, session layer, transport layer, presentation layer, and application layer C. Physical layer, data link layer, network layer, transport layer, presentation layer, session layer, and application layer D. Physical layer, data link layer, transport layer, network layer, session layer, presentation layer, and application layerA
    Módulo 2
  6. 6Which of the following port numbers is used by Telnet? A.6 B.23 C.17 D.21B
    Módulo 2
  7. 7What are functions of the network layer?⬜ A. Provide logical addresses for network devices. B. Set up connections between processes on hosts. C. Send packets from source hosts to destination hosts. D. Route and forward data packets.ACD
    Módulo 2
  8. 8Which of the following statements are true about the layers in the OSI reference model? ⬜ A. Application layer: provides network services for applications and is closest to end users. B. Transport layer: implements connection-oriented and non-connection-oriented data transmission, as well as error detection before retransmission C. Network layer: defines logical addresses for routers to determine paths and transmits data from source networks to destination networks. D. Session layer: establishes, manages, and terminates sessions between entities at the presentation layer.ABCD
    Módulo 2
  9. 9A MAC address is 48 bits (6 bytes) in length and consists of 12 hexadecimal digits.RIGHT
    Módulo 2
  10. 10An ARP Reply packet is broadcast so that all hosts can receive it.WRONG
    Módulo 2
  11. 11Common data link layer protocols include Ethernet, PPPoE, and PPP.RIGHT
    Módulo 2
  12. 12Which of the following statements about command functions is false? A. undo //Deletes a file B. pwd //Displays the current directory, C. dir//Displays information about files in the current directory. D. more //Displays the content of a text fileA
    Módulo 3
  13. 13Which of the following are types of storage device? ⬜ A. SDRAM B. Flash C. NVRAM D. SD card E. USB flash driveABCDE
    Módulo 3
  14. 14Which of the following functions are provided by the VRP? ⬜ A. Provides a unified user interface and a unified management interface. B. Implements functions of the control plane and defines interface standards of the forwarding plane. C. Implements communication between the device forwarding plane and VRP control plane. D. Eliminates the differences between the link layer and network layer of each product.ABCD
    Módulo 3
  15. 15There are two commonly used device management modes: CLI and web system.RIGHT
    Módulo 3
  16. 16Which of the following is a private IP address? A. 192.169.16.1 B. 172.17.1.254 C. 239.0.0.8 D. 172.32.16.254B
    Módulo 4
  17. 17How many IP addresses are available in network segment 172.16.0.0/30? A. 1 B. 4 C. 2 D. 8C
    Módulo 4
  18. 18Which of the following ICMP packets is used to detect the connectivity between the source and destination IP addresses? A. ICMP Redirect B. ICMP Echo C. ICMP port unreachable D. ICMP host unreachableB
    Módulo 4
  19. 19Which of the following IP addresses can be manually configured and used by host interfaces? ⬜ A.10.2.3.4 B. 127.0.0.1 C. 224.0.0.18 D. 192.168.100.254AD
    Módulo 4
  20. 20The router discards packets with a TTL value of 0.RIGHT
    Módulo 4
  21. 21Which of the following fields is not included in the output of the display ip routing-table command? A. Destination/Mask B. Proto C. Interface D. AdvRouterD
    Módulo 5
  22. 22What is the default preference of static routes? A. 150 B. 10 C. 60 D. 0C
    Módulo 5
  23. 23According to the longest match rule, which of the following routes will the data packet destined for 172.16.10.1 match? A. 172.16.10.2/32 B. 172.16.10.0/24 C. 172.16.0.0/16 D. 172.17.10.0/24B
    Módulo 5
  24. 24Which of the following are link-state routing protocols? ⬜ A.BGP B.IS-IS C. OSPF D. Static routeBC
    Módulo 5
  25. 25The summary route of 172.16.1.0/24, 172.16.2.0/24, and 172.16.5.0/24 is 172.16.0.0/22.WRONG
    Módulo 5
  26. 26Which of the following packets are used by OSPF to discover and maintain neighbor relationships? A. LSR B. DD C. Hello D. LSUC
    Módulo 6
  27. 27By default, what are the OSPF cost values of a serial port working at 1.544 Mbit/s, FE interface, and GE interface, respectively? A. 64, 10, 1 B. 640, 10, 1 C. 64, 10, 1 D. 64, 1, 1D
    Módulo 6
  28. 28Which of the following tables is used by OSPF to store link status information? A. OSPF LSDB B. OSPF peer table C. OSPF routing table D. OSPF adjacency tableA
    Módulo 6
  29. 29Which of the following are OSPF network types? ⬜ A. P2P B. Broadcast C. NBMA D. P2MPABCD
    Módulo 6
  30. 30On an MA network, the final state of the OSPF neighbor relationship between DR others is 2-way.RIGHT
    Módulo 6
  31. 31What type of MAC address is 01-00-5e-00-00-01? A. Unicast MAC address B. Multicast MAC address C. Broadcast MAC address D. Anycast MAC addressB
    Módulo 7
  32. 32Which of the following actions does a switch take by default after it receives an unknown unicast frame? A. Learns the mapping between the source MAC address and interface that receives this data frame, and discards this data frame. B. Learns the mapping between the source MAC address and interface that receives this data frame, and floods this data frame. C. Learns the mapping between the source MAC address and interface that receives this data frame, and forwards this data frame based on the MAC address table. D. Does not learn the mapping between the source MAC address and interface that receives this data frame, and forwards this data frame based on the MAC address table.B
    Módulo 7
  33. 33Which of the following ARP packets is used to request the MAC address corresponding to an IP address? A. ARP Request B. ARP Reply C. RARP Request D. RARP ReplyA
    Módulo 7
  34. 34Which of the following fields are contained in an Ethernet frame in the IEEE 802.3 format? ⬜ A. Length B. Destination MAC C. Source MAC D. FCSABCD
    Módulo 7
  35. 35A switch floods unknown unicast frames and frames whose destination MAC address is a broadcast MAC address.RIGHT
    Módulo 7
  36. 36What is the TPID value of an 802.1Q-tagged frame? A. 0x0800 B. 0x8847 C. 0x8100 D. 0x0806C
    Módulo 8
  37. 37Which of the following is a valid VLAN ID? A. 0 B. 4095 C. 65536 D. 4094D
    Módulo 8
  38. 38Based on which of the following cannot VLANs be assigned? A. Interface B. MAC address C. Subnet D. Transport-layer protocolD
    Módulo 8
  39. 39Which of the following interfaces can process data frames carrying multiple VLAN tags? ⬜ A. Access B. Bridge C. Trunk D. HybridCD
    Módulo 8
  40. 40An access interface cannot process VLAN-tagged data frames, and immediately discards them upon receipt.WRONG
    Módulo 8
  41. 41The bridge IDs of SW1, SW2, SW3, and SW4 are 4096.4c1f-aabc-102a, 4096.4c1f-aabc-102b, 4096.4c1f-aabc-001a and 8192.4c1f-aabc-112b, respectively. If the four switches are on the same Layer 2 network and have STP enabled, which switch acts as the root bridge?SW3
    Módulo 9
  42. 42What is the default Forward Delay value in STP? A. 30s B. 15s C. 20s D.2sB
    Módulo 9
  43. 43The root ID, bridge ID, interface ID, and root path cost (RPC) are the main fields used to determine priorities of configuration BPDUs. To select a superior configuration BPDU, in which of the following sequences does a switch compare these fields? A. Interface ID, root ID, bridge ID, and RPC B. RPC, root ID, bridge ID, and interface ID C. Root ID, bridge ID, interface ID, and RPC D. Root ID, RPC, bridge ID, and interface IDD
    Módulo 9
  44. 44Which of the following fields are contained in a configuration BPDU? ⬜ A. Forward Delay B. Port ID C. Root ID D. Bridge IDABCD
    Módulo 9
  45. 45By default, a switch runs RSTP.WRONG
    Módulo 9
  46. 46To implement inter-VLAN communication through sub-interfaces, which of the following commands needs to be configured for VLAN termination on the sub-interfaces? A. port default vlan vlan-id B. port trunk pvid vlan-id C. dot1q termination vid vlan-id D. port link-type hybrid vlan-idC
    Módulo 10
  47. 47Which of the following statements about a Layer 3 switch is false? A. Layer 3 switch can forward packets only at Layer 3. B. Layer 3 switch can route packets through VLANIF interfaces. C. Layer 3 switch can forward packets at both Layer 2 and Layer 3 D. Layer 3 switch can route packets through Layer 3 physical interfaces.A
    Módulo 10
  48. 48Which of the following statements is false about routing on Layer 3 switches? A. If a Layer 3 switch finds that the destination MAC address of a received data frame is the MAC address of its VLANIF interface, it sends the data frame to its routing module for further processing B. If the routing module of a Layer 3 switch finds that the destination IP address is not the IP address of a local interface on the switch, it looks up a routing entry matching this IP address in the routing table C. Layer 3 switch forwards the packet to the next hop specified in the matching routing entry, without re-encapsulating the data frame. D. When routing a packet at Layer 3, a Layer 3 switch replaces the source and destination MAC addresses of the packet.C
    Módulo 10
  49. 49If sub-interfaces are configured to implement inter-VLAN communication, which of the following interfaces should be configured to connect a switch to a router? ⬜ A. Hybrid B. Trunk C. Bridge D. AccessAB
    Módulo 10
  50. 50During Layer 3 communication, the source and destination MAC addresses of a packet are changed each time it passes through a Layer 3 device.RIGHT
    Módulo 10
  51. 51What is the default LACP interface priority? A. 4096 B.0 C. 32768 D.8192C
    Módulo 11
  52. 52Which of the following configurations can be different on member interfaces in an Eth-Trunk interface? A. Spanning tree configurations B. Interface rate C. Duplex mode D. VLAN configurationsA
    Módulo 11
  53. 53Which of the following statements is false about selecting active links in LACP mode? A. Devices on both ends exchange LACPDUs to select the Actor. B. The Actor selects active interfaces based on the LACP interface priority and interface number. C. The Actor enables active interfaces and disables backup interfaces, and notifies the device on the other end of the selected active interfaces based on the physical interface status. D. The Partner determines its active interfaces based on the active interfaces selected on the Actor.C
    Módulo 11
  54. 54Which of the following fields in an LACPDU is used to select the Actor? ⬜ A. Interface number B. Device MAC address C. Device priority D. Interface priorityBC
    Módulo 11
  55. 55Configuring the lower threshold for the number of active interfaces in an Eth-Trunk ensures that the Eth-Trunk has the minimum required bandwidth.RIGHT
    Módulo 11
  56. 56What is the default increment of ACL rule IDs? A.20 B.15 C.5 D.10C
    Módulo 12
  57. 57What is the number range of advanced ACLs? A. 4000-4999 B. 3000-3999 C. 2000-2999 D. 6000-6999B
    Módulo 12
  58. 58If the number of an ACL is 4010, which of the following fields can the ACL match? A. Source IP address B. Source IP address and destination IP address C. Source MAC address, destination MAC address, and Layer 2 protocol type D. Packet header and offsetC
    Módulo 12
  59. 59Which of the following packets can match the ACL rule: rule 1 permit tcp source any destination 192.168.1.1 0.0.0.0 destination-port eq 80?⬜ A. Source IP address: 10.1.1.1; destination IP address: 192.168.1.2; source port number: 62012; destination port number: 80; transport layer protocol: TCP B: Source IP address: 10.1.1.1; destination IP address: 192.168.1.1; source port number 30000; destination port number: 80; transport layer protocol: UDP C: Source IP address: 10.1.1.1; destination IP address: 192.168.1.1; source port number: 62012; destination port number: 80; transport layer protocol: TCP D: Source IP address: 10.0.0.1; destination IP address: 192.168.1.1; source port number: 30000; destination port number: 80: transport layer protocol: TCPCD
    Módulo 12
  60. 60An advanced ACL can match the source and destination port numbers of packets, enabling it to filter TCP packets with a specified destination port number.RIGHT
    Módulo 12
  61. 61Which of the following roles is not included in the common AAA network architecture? A. User B. AAA server C. Network access server (NAS) D. Portal serverD
    Módulo 13
  62. 62What are the transport layer protocol and authentication port number used by RADIUS? A.TCP, 1812 B. UDP, 1812 C. TCP, 1813 D. UDP, 1812B
    Módulo 13
  63. 63Which of the following authorization modes is not supported by AAA? A. Non-authorization B. Local authorization C. Mutual authorization D. Remote authorizationC
    Módulo 13
  64. 64Which of the following concepts are involved in AAA? ⬜ A. Accounting B. Authentication C. Authorization D. AutomationABC
    Módulo 13
  65. 65When receiving a user access request, the NAS determines the domain to which the user belongs based on the user name, and performs user management and control based on the AAA schemes configured for the domain.RIGHT
    Módulo 13
  66. 66Which of the following NAT technologies can only use an interface address as the post-NAT public address? A. Easy IP B. NAT Server C. Dynamic NAT D. Static NATA
    Módulo 14
  67. 67Which of the following NAT technologies can be deployed on egress network devices to enable external users to access only a TCP port of an intranet server? A. Static NAT B. NAT Server C. Dynamic NAT D. NAPTB
    Módulo 14
  68. 68Which of the following are not translated by NAPT? ⬜ A. Destination IP address B. Source port number C. Destination port number D. Source IP addressAC
    Módulo 14
  69. 69Which of the following NAT technologies can be used to enable external users to proactively access an intranet server? ⬜ A. Static NAT B. NAT Server C. NAPT D. Easy IPAB
    Módulo 14
  70. 70NAPT translates not only IP addresses but also port numbers to implement 1:N mappings between public and private addresses.RIGHT
    Módulo 14
  71. 71What is the level of the domain ".com" in the URL www.huawei.com? A. Top-level domain B. Second-level domain C. Root domain D. Host nameA
    Módulo 15
  72. 72Which of the following messages is sent by a DHCP server to carry the IP address assigned to a client during DHCP interaction? A. DHCP Offer B. DHCP Discover C. DHCP Ack D. DHCP RequestA
    Módulo 15
  73. 73Which of the following is the default destination port number of the FTP control channel? A.20 B.22 c.23 D.21D
    Módulo 15
  74. 74Which of the following parameters can be assigned by a DHCP server to a DHCP client? ⬜ A. Local IP address B. Mask C. DNS server address D. Gateway addressABCD
    Módulo 15
  75. 75FTP works in active or passive mode. TCP port 20 is used in both modes.WRONG
    Módulo 15
  76. 76Which of the following 802.11 protocols works only on the 5 GHz frequency band? A. 802.11ax B. 802.11n C. 802.11ac D. 802.11gC
    Módulo 16
  77. 77Which of CAPWAP message types is used by an AC to deliver configuration files to APs? A. Configuration Update Request B. Image Data Request C. Configuration Update Response D. Image Data ResponseC
    Módulo 16
  78. 78Which of the following data frames is used by an AP to periodically broadcast its SSID? A. Probe Request B. Probe Response C. Association Request D. BeaconD
    Módulo 16
  79. 79Which of the following modes are used by APs to dynamically discover an AC?⬜ A. Manually specifying the AC IP address on the APs B. Broadcast mode C. DHCP mode D. DNS modeBCD
    Módulo 16
  80. 80Two CAPWAP tunnels are established: data tunnel and control tunnel. They are both kept alive using Keepalive messages.WRONG
    Módulo 16
  81. 81Which of the following packet types is used by PPPoE to terminate a session? A PADS B. PADT C. PADO D. PADRB
    Módulo 17
  82. 82If a packet with unmatched parameters is received during LCP negotiation, which of the following packet types is used by PPP to respond to the packet? A. Configure-Ack B. Configure-Reject C. Configure-Nak D. Authenticate-NakC
    Módulo 17
  83. 83Which of the following authentication protocols are supported by PPP? ⬜ A. EAP-TLS B. PAP C. EAP-MD5 D. CHAPBD
    Módulo 17
  84. 84Which of the following packet types are used during PPP negotiation? ⬜ A.LCP B. PAP C. CHAP D.IPCPABCD
    Módulo 17
  85. 85During CHAP authentication, the password configured for a user is carried by PPP packets in plaintext.WRONG
    Módulo 17
  86. 86Which of the following packet types is used by SNMPv2c to proactively send traps to an NMS and requires a response from the NMS? A. Inform B. Trap C. Response D. NotificationA
    Módulo 18
  87. 87Unlike SNMPv1, SNMPv2c uses which of the following packet types to query OIDs in batches? A. Get-Request B. Get-Next-Request C. GetBulk D GetContinueC
    Módulo 18
  88. 88Which of the following are attributes of managed devices defined in the MIB? ⬜ A. Status of an object B. Data type of an object C. Access permission of an object D. OID of an objectABCD
    Módulo 18
  89. 89Which of the following new security features that SNMPv3 provides over SNMPv1 and SNMPv2c? ⬜ A. Digital signature technology can be used to verify the source of SNMP packets B. The MDS algorithm is supported for user authentication C. DES is supported for data encryption D. RSA is supported for asymmetric data encryptionBC
    Módulo 18
  90. 90Network devices enabled with SNMP run the agent process. The management process of an NMS interacts with the agent process through SNMP packets.RIGHT
    Módulo 18
  91. 91What is the length of an IPv6 address? A 64 B. 96 C. 256 D. 128D
    Módulo 19
  92. 92What is the abbreviated version of the IPv6 address 2001:0AF8:0000:1234:FB00:0000:5000:EF 14? A. 2001:AF8:0000:1234:FB:0000:5000:EF 14 B. 2001:0AF8::1234:FB00:5000:EF 14 C. 2001:AF8:0:1234:FB00::5000:EF 14 D. 2001:0AF8:0000:1234:FB00:0000:5:EF 14C
    Módulo 19
  93. 93Which of the following fields is used in a basic IPv6 header but not in an IPv4 header? A. Payload length B. Hop limit C. Next header D. Flow labelD
    Módulo 19
  94. 94Depending on the IPv6 address prefix, which of the following address types can IPv6 addresses be classified into? ⬜ A. Multicast address B. Broadcast address C. Unicast address D. Anycast addressACD
    Módulo 19
  95. 95An IPV6 unicast address consists of a network prefix and an interface ID. Common IPv6 unicast addresses, such as global unicast addresses and link-local addresses, require the network prefix and interface ID to be 64 bits.RIGHT
    Módulo 19
  96. 96In the standard NFV architecture, which of the following modules is responsible for virtualization of the underlying hardware? A.OSS B. MANO C.VNF D. NFVID
    Módulo 20
  97. 97In the SDN architecture, which of the following interfaces is used for communication between the controller and an SDN switch? A. RESTCOMF interface B. RESTful interface C. Northbound interface D. Southbound interfaceD
    Módulo 20
  98. 98In the OpenFlow architecture, which of the following packets are sent from the controller to a switch? ⬜ A. Controller-to-Switch B. Symmetric C. Switch-to-Controller D. AsynchronousAB
    Módulo 20
  99. 99Which of the following are NFV features?⬜ A. Partition division B. Isolation C. Encapsulation D. Hardware IndependenceABCD
    Módulo 20
  100. 100An OpenFlow switch forwards packets based on the flow table, and matches the destination MAC and IP addresses and other fields in the packets.RIGHT
    Módulo 20
  101. 101To improve code modularization and utilization, which of the following is used to describe a collection of objects with the same attributes and methods? A. class B. init C. function D. defA
    Módulo 21
  102. 102Which of the following methods is used to write data to the telnetlib module? A. read_all() B. close() C. write() D. read_very_eager()C
    Módulo 21
  103. 103Which of the following characters can be used as Python identifiers? ⬜ A. Digits B. @ signs C. Letters D. UnderscoresACD
    Módulo 21
  104. 104Which of the following are compiled high-level programming languages? ⬜ A. C B. C++ C. Java D. PythonAB
    Módulo 21
  105. 105Python programs use indentation to represent code blocks. Statements in the same code block must have the same number of indented spaces.RIGHT
    Módulo 21
  106. 106To conserve IP addresses, what mask size is used for IP addresses on router to router connections on an enterprise network? A.28 B.29 c.30 D.24C
    Módulo 22
  107. 107On a campus network, which of the following functions can be enabled on access switches to prevent employees from accessing the unauthorized DHCP-enabled router? A. IPSG B. DHCP relay C. DHCP snooping D. Port securityC
    Módulo 22
  108. 108Which of the following technologies can be used on a campus network to improve network reliability? ⬜ A. iStack B.CSS C. VRRP D. Link aggregationABCD
    Módulo 22
  109. 109Which of the following are stages in the lifecycle of a campus network project? ⬜ A. Planning and design B. Deployment and implementation C. Network O&M D. Network optimizationABCD
    Módulo 22
  110. 110Certain terminals, such as servers and printers, can be allocated fixed IP addresses.RIGHT
    Módulo 22

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Karteikarten am Revisão, erstellt von Lucas Andrade am 14/12/2023.
Erstellt von
Lucas Andrade
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