问题:单选题What information does the help reference command provide?()A A brief description of commands and their default valuesB The serial number and version number of the device used to open a support case with JTACC A list of all the active hardware alarms on the deviceD A display of the current configuration while in operational mode
查看答案
问题:单选题You have been asked to configure your MX240 with a default route toward your upstream ISP at IP address 192.168.100.1. Which command successfully completes this task?()A user@router# set routing-options static route 0.0.0.0/0 next-hop 192.168.100.1B user@router# set routing-options default route 0.0.0.0/0 next-hop 192.168.100.1C user@router# set forwarding-options static route 0.0.0.0/0 next-hop 192.168.100.1D user@router# set protocols default route 0.0.0.0/0 next-hop 192.168.100.1
问题:多选题Which two statements are true regarding the role of the Routing Engine (RE)?()AThe RE controls and monitors the chassis.BThe RE manages the Packet Forwarding Engine (PFE).CThe RE receives a copy of the forwarding table from the forwarding plane.DThe RE implements class of service (COS).
问题:多选题Which two statements are true about terms in a routing policy?()AA routing policy cannot have more than one term.BIf a term does not contain a from statement, all routes match.CIf a term does not contain a from statement, the Junos OS will not commit.DA then statement is not mandatory in a term.
问题:单选题Which command returns a list of commands in which a given keyword is used throughout the Junos hierarchies?()A help topicB help referenceC help aproposD help tip
问题:单选题Which command will delete the current rescue configuration?()A user@router# system delete configuration rescueB user@router> request system configuration rescue deleteC user@router# delete rescue configurationD user@router> file delete rescue-configuration
问题:单选题During a password recovery, what is the next step after configuring the system to boot into single- user mode?()A Reset the root password.B Press the space bar.C Type recovery.D Press the Enter key.
问题:单选题There are three static routes in the routing table that need to be announced to your OSPF peers. Which method is used to accomplish this?()A Apply an import policy to OSPF that injects the static routes into OSPFB Apply an import policy to the static routes that injects the static routes into OSPFC Apply an export policy to the static routes that injects the static routes into OSPFD Apply an export policy to OSPF that injects the static routes into OSPF
问题:单选题What is the default SNMP permission level on Junos devices?()A readB read-writeC read-onlyD write
问题:多选题What are three benefits of using IPv6?()AIPv6 supports a greater level of security by integrating features that were optional add-ons in IPv4.BIPv6 reduces administrative overhead using stateless address autoconfiguration for hosts.CIPv6 eliminates the need for private to public NAT using a large address pool.DIPv6 provides backward compatibility with IPv4 using the Next Header field.EIPv6 represents large IP addresses using dotted decimal notation.
问题:单选题What must you type to enter operational mode from the root@% command prompt?()A exitB configureC editD cli
问题:多选题Which two statements are true about the rescue configuration file?()AIt must include a root password.BIt is rollback file number 50, and you can recover it by issuing rollback 50.CIt is created by issuing request system configuration rescue save.DIt is updated automatically when you commit.
问题:单选题What represents the binary equivalence of 148?()A 10010110B 11010010C 10011100D 10010100
问题:单选题Which statement is correct about the forwarding table?()A The forwarding table is stored only on the PFEB The forwarding table contains all known routesC The forwarding table is stored on both the RE and PFED The forwarding table is stored only on the RE
问题:多选题Which two statements are true about TCP communication?()AThe receiver acknowledges the final packet in each communications stream.BThe receiver adds sequencing numbers to the packets received.CThe sender adds sequencing numbers to the packets it sends.DThe receiver acknowledges each packet it receives from the sending device.
问题:单选题You have just issued the command user@router# save current.conf.Assuming the default settings, where in the file system is current.conf saved?()A /var/tmp/B /var/config/saved/C /var/home/user/D /config/
问题:单选题Which statement is true regarding the password-recovery process?()A You must have a console connection.B You cannot set the console port to an insecure mode.C You must press the Enter key so that you can boot into single-user mode.D When prompted to enter the full pathname of the shell, you must press the Enter key.
问题:单选题Using the command, user@router# load override latest.conf, where in the file system will the latest.conf be located?()A /var/home/user/B /var/config/saved/C /var/tmp/D /config/
问题:单选题What does the command show compare rollback 1 display?()A the difference between the current candidate configuration and the candidate configuration from one commit agoB the difference between the current active configuration and the current candidate configurationC the difference between the current active configuration and the active configuration from one commit agoD the difference between the current candidate configuration and the archived configuration from one commit ago
问题:单选题What is the role of route preference?()A It is used as a tiebreaker when the same prefix is available through multiple protocols.B It is used to determine the preferred path to a given destination.C It is used to select the best route between multiple equal-cost paths.D It is used to select which routing table to use for forwarding.