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.
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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 commands would you use to discard a candidate configuration?()ArollbackBdeleteCdelete 0Drollback 0
问题:单选题What is the purpose of a network mask?()A It is used in conjunction with the wildcard mask to determine the number of hosts on a networkB It is used to define which parts of the IP address are allocated to host addresses and network prefixesC It is used to hide subnets from external networks by masking the subnets with NATD It is used to differentiate a network as a classful network or a classless network
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
问题:多选题Which two commands would you use to view OSPF routes?()Ashow ip route ospfBshow ospf routesCshow route protocol ospfDshow route
问题:多选题You are asked to free up disk space so you can update your version of the Junos OS.Which two commands display the files that will be removed?()Auser@router> request system storage cleanupBuser@router> show system storageCuser@router> request system storage cleanup dry-runDuser@router> show system storage detail
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:多选题Which three steps are part of the root password recovery process?()AReboot the device.BRun the recovery script.CReset the root password.DReset the user passwords.ELoad factory-default configuration.
问题:多选题What are two routing requirements for a device to communicate with another device?()Aend-to-end communications pathBhosts on the same Layer 2 broadcast domainChosts on the same Layer 3 broadcast domainDrouting information on participating Layer 3 devices
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).
问题:单选题Which statement describes an advantage of dynamic routing?()A Dynamic routing is typically more scalable when compared to static routing.B Unlike static routing, dynamic routing requires no initial user configuration.C Unlike static routing, dynamic routing provides redundant IP addresses for end-user devices.D Dynamic routing provides DNS services along with IP connectivity, whereas static routing does not.
问题:单选题In the exhibit, there are four static routes that route traffic through different interfaces.Which interface does the router use if traffic is sent to the 99.0.0.1 destination?()Age-0/0/1Bge-0/0/2Cge-0/0/3Dge-0/0/4
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:多选题Which two external authentication servers are supported for administrative access to a Junos device?()ARADIUSBLDAPCACEDTACACS+
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.