What is the default BGP group type on a Junos device?
Answer : B
Which two statements are true about nonstop bridging (NSB)? (Choose two.)
Answer : BC
Click the Exhibit button.
Answer : B
Which Junos feature allows you to combine multiple interfaces into a single bundle?
Answer : C
You are asked to ensure that a designated interface on an EX Series switch only allows a specific server to pass traffic.
Which two features are required to satisfy this solution? (Choose two.)
Answer : CD
What information is included in the DHCP snooping database? (Choose two.)
Answer : AD
When DHCP snooping is enabled, the lease information from the server is used to create the DHCP snooping table, also known as the binding table.
The table shows current IP-MAC bindings, as well as lease time, type of binding, names of associated VLANs, and associated interface.
Which three statements are correct about the voice VLAN feature? (Choose three.)
Answer : ABC
A (not D): The Voice VLAN feature in EX-series switches enables access ports to accept both data (untagged) and voice (tagged) traffic and separate that traffic into different VLANs.
B: To assign differentiated priority to Voice traffic, it is recommended that class of service (CoS) is configured prior to enabling the voice VLAN feature. Typically, voice traffic is treated with a higher priority than common user traffic. Without differentiated treatment through CoS, all traffic, regardless of the type, is subject to the same delay during times of congestion.
C: In conjunction with Voice VLAN, you can utilize Link Layer Discovery Protocol Media Endpoint Discovery (LLDP-MED) to provide the voice VLAN ID and 802.1p values to the attached IP phones. This dynamic method associates each IP phone with the appropriate voice VLAN and assigns the necessary802.1p values, which are used by CoS, to differentiate service for voice traffic within a network.
Which two statements are correct about aggregate routes in the Junos OS? (Choose two.)
Answer : AB
A route can contribute only to a single aggregate route. You can configure only one aggregate route for each destination prefix.
What are two types of IS-IS PDUs? (Choose two.)
Answer : CD
IS-IS hello (IIH) PDUs broadcast to discover the identity of neighboring IS-IS systems and to determine whether the neighbors are Level 1 or Level 2 intermediate systems. Link-state PDUs contain information about the state of adjacencies to neighboring IS-IS systems.
What are three extended BGP communities? (Choose three.)
Answer : ABE
The BGP extended communities attribute format has three fields: type: administrator: assigned-number. type is the type of extended community and can be either the 16-bit numerical identifier of a specific BGP extended community or one of these types: origin-- Identifies where the route originated. domain-id-- Identifies the OSPF domain from which the route originated. target-- Identifies the destination to which the route is going. bandwidth-- Sets up the bandwidth extended community. Specifying link bandwidth allows you to distribute traffic unequally among different BGP paths. rt-import-- Identifies the route to install in the routing table. src -as-- Identifies the AS from which the route originated. You must specify an AS number, not an IP address.
https://www.juniper.net/techpubs/en_US/junos12.3/topics/usage-guidelines/policy-defining-bgp- communities-and-extended-communities-for-use-in-routing-policy- match-conditions.html
Which two statements are true about DIS elections in IS-IS? (Choose two.)
Answer : BD
In IS-IS, deterministic DIS election makes the possibility of predicting the router that will be elected as DIS from the same set of routers.
The router advertising the numerically highest priority wins, with numerically highest MAC address, also called a Subnetwork Point of Attachment (SNPA), breaking the tie.
Host-1 was recently added in the network and is attached to ge-0/0/10 on Switch-A.
Host-1 is powered on and has its interface configured with default Layer 2 settings and an IP address on the 172.17.12.0/24 IP subnet.
Host-1's MAC address is not shown in Switch-A's bridging table. What are three explanations for this state? (Choose three.)
Answer : BCD
B: MAC learning messages received with errors include:
Interface down--The MAC address is learned on an interface that is down. C: To configure the MAC address of an IRB interface Etc.
http://www.juniper.net/techpubs/en_US/junos15.1/topics/reference/command-summary/show- ethernet-switching-statistics-mac-learning-ex-series.html https:// www.juniper.net/documentation/en_US/junos16.1/topics/example/example-configuring- mac-address-of-an-irb-interface.html
Router-1 and Router-2 need to connect through the Internet using a tunneling technology.
Hosts that are connected to Router-1 and Router-2 will be sending traffic up to 1500 bytes.
The maximum segment size is supported across the path is 1520 bytes. Which tunneling technology will allow this communication to take place?
Answer : D
Difference Between GRE and IP-IP Tunnel. Generic Routing Encapsulation (GRE) and IP-in-IP (IPIP) are two rather similar tunneling mechanisms which are often confused. In terms of less overhead, the GRE header is 24 bytes and an IP header is 20 bytes.
What are two interarea OSPF LSA types? (Choose two.)
Answer : AB
A: The fourth LSA type, network example:
Click the Exhibit button. Given the configuration shown in the exhibit, what will be the threshold for storm control?
Answer : A
This example shows how to configure the storm control level on interface ge-0/0/0 by setting the level to a traffic rate of 15,000 Kbps, based on the traffic rate of the combined applicable traffic streams. To configure storm control: Specify the traffic rate in Kbps of the combined traffic streams on a specific interface: [edit ethernet-switching-options] user@switch# set storm-control interface ge-0/0/0 bandwidth 15000