Fichas
204-2 CH2
Fichas del conjunto (84)
- 1One of the most common types of WAN connections, especially in long-distance communications, is a ___ connection, also called a ___ or ___ connection.point-to-point
serial
leased-line - 2It is a protocol that is able to handle authentication, compression, error detection, monitor link quality, and logically bundles multiple serial connections together to share the load.PPP
- 3Communications across a ___ connection is a method of data transmissions in which the bits are transmitted sequentially over a single channel.Serial
- 4In ___ communications, bits can be transmitted simultaneously over multiple wires.Parallel
- 5When permanent connections are required, a ___ is used to provide a single, pre-established WAN communications path from the customer premises, through the provider network, to a remote destination.Point-to-point link
- 6T or F: Point-to-point links are usually more cheaper than shared services.FALSE
- 7T or F: The dedicated capacity removes latency or jitter between the endpoints.TRUE
- 8It is the end of the user's device on the WAN link.Data Terminal Equipment
- 9It is the end of the WAN provider's side of the communication facility. And responsible for providing clocking signal.Data Communications Equipment
- 10It is the default encapsulation type on point-to-point connections, dedicated links, and circuit -switched connections when the link uses two Cisco devices.HDLC
- 11This encapsulation protocol provides router-to-router and host-to-network connections over synchronous and asynchronous circuits.PPP
- 12___ uses the HDLC encapsulation protocol, but also has built-in security mechanisms such as PAP and CHAP.PPP
- 13It is a standard protocol for point-to-point serial connections using TCP/IP.Serial Line Internet Protocol (SLIP)
- 14An ITU-T standard that defines how connections between a DTE and DCE are maintained for remote terminal access and computer communications in public data networks.X.25
- 15It is a predecessor to Frame Relay.X.25
- 16An industry standard, switched, data link layer protocol that handles multiple virtual circuits.Frame Relay
- 17It is a next generation protocol after X.25.Frame Relay
- 18The international standard for cell relay in which devices send multiple service types, such as voice, video, or data, in fixed-length (53-byte) cells.ATM
- 19HDLC is a bit-oriented synchronous data link layer protocol developed by the ___.International Organization for Standardization (ISO)
- 20The current standard for HDLC is ___.ISO 13239.
- 21HDLC uses a ___, or ___, to mark the beginning and the end of each frame.frame delimeter
flag - 22Standard HDLC Frame Format StructureFlag
Address
Control
Data
FCFS
Flag - 23Cisco HDLC Frame Format StructureFlag
Address
Control
Protocol
Data
FCFS
Flag - 24It is the command to configure HDLC encapsulation.encapsulation hdlc
- 25The ___ command is another important diagnostic tool when troubleshooting serial lines. The output indicates the state of the interface channels and whether a cable is attached to the interface.show controllers [serial 0/0/0]
- 26This encapsulation should be used when there is a need to connect a non-Cisco router.PPP
- 27It establishes a direct connection using serial cables, phone lines, trunk lines, cellular telephones, specialized radio links, or fiber-optic links.PPP
- 28This PPP main component is for transporting multiprotocol packets over point-to-point links.HDLC-like framing
- 29This PPP main component is for establishing, configuring, and testing the data-link connection.Extensible Link Control Protocol (LCP)
- 30This PPP main component is for establishing and configuring different network layer protocols.Family of Network Control Protocols (NCPs)
- 31This feature monitors the quality of the [PPP] link.Link Quality Management (LQM)
- 32It is the interface command used to configure LQM; to ensure that the link meets the quality requirement set.ppp quality [percentage]
- 33These are the authentication supported by PPP.PAP
CHAP - 34The only absolute requirement imposed by PPP is a ___, either dedicated or switched, that can operate in an asynchronous or synchronous bit-serial mode.full-duplex circuit
- 35Most of the work done by PPP happens at the ___ and ___ layers, by LCP and NCPs.Data Link
Network - 36The ___ functions within the data link layer and has a role in establishing, configuring, and testing the data-link connection.Link Control Protocol (LCP)
- 37After the link is established, PPP also uses the ___ to agree automatically on encapsulation formats such as authentication, compression, and error detection.LCP
- 38___ permits multiple network layer protocols to operate on the same communications link.PPP
- 39It is the Network Control Protocol (NCP) used by IPv4.IP Control Protocol (IPCP)
- 40It is the Network Control Protocol (NCP) used by IPv6.IPv6 Control Protocol (IPv6CP)
- 41It is a single byte that indicates the beginning or end of a frame.Flag
- 42The Flag field consists of the binary sequence ___.01111110
- 43It is a single byte that contains the binary sequence 11111111, the standard broadcast address.Address
- 44It is the binary sequence for [standard broadcast] address.11111111
- 45It is a single byte that contains the binary sequence 00000011, which calls for transmission of user data in an unsequenced frame.Control
- 46Control contains the binary sequence ____.00000011
- 47This part of the PPP frame structure consists of two bytes that identify the protocol encapsulated in the information field of the frame.Protocol
- 48This part of the PPP frame structure consists of zero or more bytes that contain the datagram for the protocol specified in the protocol field.Data
- 49This is normally 16 bits (2 bytes). If this does not match, the PPP frame is silently discarded.Frame Check Sequence (FCS)
- 50This phase is complete when the receiving router sends a configuration-acknowledgment frame back to the router initiating the connection.Phase 1: Link Establishment
[and configuration negotiation] - 51In this phase, the LCP tests the link to determine whether the link quality is sufficient to bring up network layer protocols.Phase 2: Link Quality determination
- 52In this phase, the appropriate NCP can separately configure the network layer protocols, and bring them up and take them down at any time.Phase 3: Network [layer] Protocol Negotiation
- 53These LCP frame class establish and configure a link (Configure-Request, Configure-Ack, Configure-Nak, and Configure-Reject).Link-establishment frames
- 54These LCP frame class manage and debug a link (Code-Reject, Protocol-Reject, Echo-Request, Echo-Reply, and Discard-Request).Link-maintenance frames
- 55These LCP frame class terminate a link (Terminate-Request and Terminate-Ack).Link-termination frames
- 56The ___ field is 1 byte in length and identifies the type of LCP packet.Code
- 57The ___ field is 1 byte in length and is used to match packet requests and replies.Identifier
- 58The ___ field is 2 bytes in length and indicates the total length (including all fields) of the LCP packet.Length
- 59The ___ field is 0 or more bytes as indicated by the length field. The format of this field is determined by the code.Data
- 60This PPP [optional] function uses either PAP or CHAP.Authentication
- 61This PPP [optional] function uses either Stacker Predictor.Compression
- 62This field indicates the authentication protocol, either PAP or CHAP.Authentication Protocol
- 63This option is a flag indicating that the PPP protocol ID be compresses to a single octet.Protocol Compression
- 64This option is a flag indicating that the PPP Address field and the PPP Control field be removed from the PPP header.Address and Control Field Compression
- 65This is a random number chosen to distinguish a peer and detect looped back lines.Magic Number (Error Detection)
- 66This option is a 1-octet indicator of how it is to be determined.Callback
- 67It is the PPP basic configuration command.encapsulation ppp
- 68This option (command) invokes a software compression process, it can affect system performancecompress [predictor | stac]
- 69___ provides packet fragmentation and reassembly, proper sequencing, multivendor interoperability, and load balancing on inbound and outbound traffic.Multilink PPP
- 70These commands are used to configure PPP Multilink.ppp multilink
ppp multilink group 1 - 71This command displays [PPP] statistics for all interfaces configured on the router.show interfaces
- 72This command displays [PPP] information about a serial interface.show interface serial [0/0/0]
- 73This command displays information about a PPP multilink interface.show ppp multilink
- 74___ is a very basic two-way process. There is no encryption. The username and password are sent in plaintext.PAP
- 75___ is more secure and It involves a three-way exchange of a shared secret.CHAP
- 76___ provides a simple method for a remote node to establish its identity using a two-way handshake.Password Authentication Protocol (PAP)
- 77___ conducts periodic challenges to make sure that the remote node still has a valid password value.Challenge Handshake Authentication Protocol (CHAP)
- 78This protocol provides protection against playback attack by using a variable challenge value that is unique and unpredictable.Challenge Handshake Authentication Protocol (CHAP)
- 79It is the ppp authentication command.ppp authentication {chap | pap | chap pap | pap chap}
- 80This debug ppp command parameter displays PPP packets being sent and received.packet
- 81This debug ppp command parameter displays PPP packets transmitted during PPP startup, where PPP options are negotiated.negotiation
- 82This debug ppp command parameter displays errors and errors statistics associated with PPP connection negotiation and operation.error
- 83This debug ppp command parameter displays authentication protocol messages, including exchanges in CHAP and PAP.authentication
- 84This debug ppp command parameter display information specific to the exchange of PPP connections using MPPC.compression
Información
- Descripción
- Fichas sobre 204-2 CH2, creado por Thea Usita el 17/03/2018.
- Creado por
- Thea Usita
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