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
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问题:单选题Which command gracefully shuts down the Junos OS?()A request system rebootB request system logoutC request system haltD restart gracefully
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When considering the default behavior of Junos platforms, which statement is true about archiving configurations?()A A system log message is generated, confirming the transfer attempt.B The destination filename format can be altered by configuration.C The frequency the system archives the configuration cannot be changed.D An archive log is created to track transfer attempts, both failed and successful.
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.
问题:单选题Which configuration causes RIP-learned routes to be advertised to other RIP neighbors?()A set protocol rip no-passiveB top edit policy-options policy-statement demo set term 1 from protocol rip set term 1 then accept top set protocols rip group internal export demoC set protocols rip advertise in-outD top edit policy-options policy-statement demo set term 1 from active routes set term 1 then accept top set protocols rip group internal export demo
问题:多选题Which two statements are correct regarding default protocol preference values?()ARIP is preferred over OSPF external routes.BDirect, local, and static routes have the same preference value.COSPF's preference value is lower than BGP.DOSPF has a single preference value for both internal and external routes.
问题:单选题Why is IPv6 packet processing more effective than IPv4 packet processing?()A fixed header sizeB smaller header sizeC fewer header fieldsD variable header size
问题:多选题Which two statements are true regarding routing policy processing?()AThe Junos OS verifies the match criteria of each policy in order and performs the associated action when a match occurs.BPolicies are evaluated from right to left as displayed in the Junos OS configuration file.CPolices are evaluated based on the order in which they are applied to a routing protocol.DPolicy processing stops once the last statement in the policy is evaluated.
问题:单选题What is the default route preference value for EBGP?()A 20B 100C 170D 200
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: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: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Which statement is correct regarding IPv6 addresses?()A An IPv6 address consists of 128 bits separated into eight 16-bit hexadecimal sections.B An IPv6 address consists of 64 bits separated into four 16-bit hexadecimal sections.C An IPv6 address consists of 128 bits separated into sixteen 8-bit hexadecimal sections.D An IPv6 address consists of 64 bits separated into eight 8-bit hexadecimal sections.
问题:多选题Which two statements apply when a user has entered private configuration mode by typing configure private?()AAll users have their own active configuration.BAll users have their own private candidate configuration.CWhen a user commits, all nonconflicting changes made by all users are committed.DWhen a user commits, only the user's own changes are committed.
问题:多选题You are at the top of the hierarchy and must configure OSPF on interface so-0/0/0 unit 100. Which two achieve this result?()Aset protocols setospf area 0 set interface so-0/0/0.100Bset protocols ospf area 0 interface so-0/0/0.100Cedit protocols ospf interface so-0/0/0.100Dedit protocols ospf area 0 set interface so-0/0/0.100
问题:单选题What represents the binary equivalence of 148?()A 10010110B 11010010C 10011100D 10010100
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).