If a SONET/SDH interface transmit link fails between two JUNOS devices, which two alarms or defects would be seen on those devices?（）A、LOSB、REIC、BIP-B3D、RDI

第1题：

第2题：

In which two locations in an enterprise network can an IPS sensor be placed?（）

• A、bridging VLANs on two switches
• B、bridging two VLANs on one switch
• C、between two Layer 2 devices withtrunking
• D、between two Layer 2 devices withouttrunking
• E、between a Layer 2 device and a Layer 3 device withtrunking

正确答案:C,D

第3题：

In an IEEE 802.1x deployment，between which two devices EAPOL messages typically are sent？（）

• A、Between the supplicant and the authenticator
• B、Between the authenticator and the authentication server
• C、Between the supplicant and the authentication server
• D、Between the RADIUS server and the authenticator

正确答案:A

第4题：

You are asked to configure real-time performance monitoring (RPM) between two Junos devices to track traffic in your network. Which two application traffic types can you track?（）

• A、ICMP
• B、SNMP
• C、TCP
• D、HTTPS

正确答案:A,C

第5题：

Layer 3 （the network layer） provides connectivity and path selection between two host systems that may be located on geographically separated networks. Which two devices operate at the network layer？（）

• A、 application
• B、 hub
• C、 switch
• D、 bridge
• E、 router

正确答案:E

第6题：

In which two locations in an enterprise network can an IPS sensor be placed？ （）

• A、 bridging VLANs on two switches
• B、 bridging two VLANs on one switch
• C、 between two Layer 2 devices with trunking
• D、 between two Layer 2 devices without trunking
• E、 between a Layer 2 device and a Layer 3 device with trunking

正确答案:C,D

第7题：

Which of the following commands would MOST likely be used to see where a loss of connectivity between two devices on a network is located?（）

• A、tracert
• B、netstat
• C、nslookup
• D、ping

正确答案:A

第8题：

Which two statements are true regarding high-availability chassis clustering？（）

• A、A chassis cluster consists of two devices.
• B、A chassis cluster consists of two or more devices.
• C、Devices participating in a chassis cluster can be different models.
• D、Devices participating in a chassis cluster must be the same models

正确答案:A,D

第9题：

Two devices on an Ethernet segment sent frames at the same time causing a collision.Which two statements are true?（）

• A、Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.
• B、The device with the lowest MAC address is permitted to retransmit first.
• C、The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.
• D、Both devices send a jam signal to notify all other devices of the collision.

正确答案:A,D

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第14题：

Which of these technologies is characterized as being a multipoint Layer 2 VPN that connects two or more customer devices using Ethernet bridging techniques?（）

• A、DPT
• B、MPLS
• C、VPLS
• D、CWDM
• E、DWDM
• F、SONET/SDH

正确答案:C

第15题：

Which of the following metrics indentifies the number of connections that is between two devices?（）

• A、Hop count
• B、MTU
• C、Latency
• D、Bandwidth

正确答案:A

第16题：

In an Ethernet network, under what two scenarios can devices transmit?（）

• A、when they receive a special token
• B、when there is a carrier
• C、when they detect no other devices are sending
• D、when the medium is idle
• E、when the server grants access

正确答案:C,D

第17题：

For what two purposes does the Ethernet protocol use physical addresses？（）

• A、to uniquely identify devices at Layer 2
• B、to allow communication with devices on a different network
• C、to differentiate a Layer 2 frame from a Layer 3 packet
• D、to establish a priority system to determine which device gets to transmit first
• E、to allow communication between different devices on the same network
• F、to allow detection of a remote device when its physical address is unknown

正确答案:A,E

第18题：

Which two wireless devices acts as a communication connection between the client and WLAN（）

• A、 bridge
• B、 access point
• C、 wireless adaptor
• D、 Layer 3 switch
• E、 antenna

正确答案:B,C

第19题：

In a chassis cluster with two SRX 5800 devices, the interface ge-13/0/0 belongs to which device?（）

• A、This interface is a system-created interface.
• B、This interface belongs to node 0 of the cluster.
• C、This interface belongs to node 1 of the cluster.
• D、This interface will not exist because SRX 5800 devices have only 12 slots.

正确答案:C

第20题：

You are asked to configure the configuration archival feature on your Junos devices.Which two transfer methods are available?（）

• A、TFTP
• B、FTP
• C、SCP
• D、SFTP

正确答案:B,C

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