limited error checking
defined timers
no recovery mechanisms
three-way handshake
第1题:
Which of the following correctly describe characteristics of PPP?()
第2题:
Which three statements describe the User Datagram Protocol (UDP)?()
第3题:
Which three statements describe the Transmission Control Protocol (TCP)?()
第4题:
Which two protocols use UDP as a transport protocol by default?()
第5题:
Which two are characteristics of user-managed backup and recovery operations?()
第6题:
open the database with the RESETLOGS option
open the database with the RESTRICTED option
recover all the data files to the same system change number (SCN)
recover to the required SCN only that data file in which the error occurred
第7题:
signaling travels in-band
up to 24 voice channels
up to 32 voice channels
signaling travels in time slot 17
uses Q.931 signaling protocol in a common channel
第8题:
Encapsulates several different types of routing protocols.
Supports only IP.
Can be used over analog circuits.
Is proprietary to Cisco
Supports error correction.
第9题:
HTTP
TFTP
DNS
SNMP
SMTP
第10题:
UDP provides delivery notification and error checking mechanisms.
UDP is faster than the Transmission Control Protocol (TCP).
UDP application examples include DNS and VoIP.
UDP is an application layer protocol.
UDP uses a best effort delivery approach.
第11题:
limited error checking
defined timers
no recovery mechanisms
three-way handshake
第12题:
it is a layer 2 messaging protocol which maintains vlan configurations across network.
it includes an 8-bit field which specifies the priority of a frame.
it is used exclusively for tagging vlan frames and dose not address network reconvergence following switched network topology changes.
it modifies the 802.3 frame header,and thus requires that the FCS be recomputed.
it is a trunking protocol capable of carring untagged frames.
第13题:
Which two characteristics describe the UDP protocol?()
第14题:
You review the failed attempts logs on an aaa server and find: "unknown network access server error." Which failure could produce this error?()
第15题:
Which two characteristitcs describe the UDP protocol?()
第16题:
Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error, you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process?()
第17题:
Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error, you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process? ()
第18题:
take the backup of the flash recovery area less frequently
increase the value of the UNDO_RETENTION initialization parameter
change the value of the WORKAREA_SIZE_POLICY initialization parameter to AUTO
change the backup retention policy to retain the backups for a smaller period of time
increase the value of the DB_RECOVERY_FILE_DEST_SIZE initialization parameter
increase the value of the CONTROL_FILE_RECORD_KEEP_TIME initialization parameter
第19题:
Recovery is initiated using SQL*Plus.
Database files are backed up using SQL commands.
Database files are backed up with Recovery Manager.
Database files are restored using Recovery Manager.
Database files are backed up using operating system commands.
第20题:
forms adjacencies with all neighbors
supports demand circuit routing
provides routing support for multiple network layer protocols
utilizes SPF algorithm
provides for network scalability by allowing the network to be separated into areas
three layers of hierarchical routing
第21题:
open the database with the RESTRICTED option
open the database with the RESETLOGS option
recover to the required SCN only that data file in which the error occurred
recover all the data files to the same system change number (SCN)
第22题:
RIP is an example of distance vector routing protocols
Updates are periodic and include the entire routing table
Routing updates are sent only after topology changes
The protocol can be useful in hub-and-spoke and hierarchical networks
Convergence is usually faster than with link state protocols
Each router has its own view of the topology
第23题:
Telnet
ICMP
DHCP
RIP