Juniper Networks Certified Internet Specialist (JNCIS-ER)

1.

You have set the OSPF reference bandwidth to 1 Gigabit. Which statement is true?

Fast Ethernet interfaces will all calculate a metric value of 100. This setting will override any bandwidth setting in a routing policy. This setting will override any static metric configured under the OSPF interface. This setting will not override any static metric configured under the OSPF interface.

2.

Which statement is correct regarding policer use for CoS in the enterprise?

Traffic can only be policed once in ingress. Traffic can only be policed once in egress. Policers are a tool to classify packets. Policers are only useful in ingress.

3.

Your Juniper WAN router is connected to an Ethernet switch that is configured to use 802.1p bits for classifying traffic. Which statement is correct about the configuration of CoS on the router?

Additional configuration is needed to use the 802.1 bits for classification. You can only use multifield classifiers for this traffic. By default the router will use the 802.1p bits for classification. You can only use multifield rewrites for this traffic.

4.

What is the primary reason to configure CoS for branch office connectivity?

To provide differentiated services to network traffic. You want to make the network faster. You want to reduce congestion. You want to treat all traffic transiting the router equally.

5.

What is the primary reason for configuring a multi area OSPF network?

to allow external OSPF routes to be advertised to all areas to reduce the possibility of creating a routing loop to allow scalability by reducing the size of the OSPF database to reduce the number of routers in the backbone area

6.

Which statement is true for a DTE frame-relay interface on a Juniper Networks router?

point-to-point must be set on the logical unit. keepalives must be disabled on the physical interface. dte must be set on the physical interface. A dlci value must be defined on the logical unit.

7.

You are an ISP. Your backbone IP address space is 10.10.0.0/16. Your network management IP address space is 192.168.100.0/24. A firewall filter is applied to lo0 which allows management access using Telnet and FTP. Which firewall filter will also allow OSPF and BGP to function without blocking management access ?

[edit firewall family inet] user@r2# show filter management-access { term allow_telnet_ftp { from { source-address { 192.168.100.0/24; } protocol tcp; destination-port [ telnet ftp ]; } then accept; } [edit firewall family inet]user@r2# show filter management-access { term allow_telnet_ftp { from { source-address { 192.168.100.0/24; } then accept; } [edit firewall family inet]user@r2# show filter management-access { term allow_telnet_ftp { from { source-address { 192.168.100.0/24; } destination-port [ telnet ftp ]; } then accept; } term 2 { from { source-address { 10.10.0.0/16; } then accept; } [edit firewall family inet]user@r2# show filter management-access { term allow_telnet_ftp { from { source-address { 192.168.100.0/24; 10.10.0.0/16; } destination-port [ telnet ftp ]; } then accept; } term 2 { then { discard; } } }

8.

You are using the route redistribution strategy to transition your network from RIP to OSPF. What must you do to avoid routing loops?

Apply import policies to restrict routing exchange between protocols. Decease the preference of OSPF. Apply export policies to restrict routing exchange between protocols. Increase the preference of RIP.

9.

BGP communities can be used to influence your ingress traffic from the Internet. The communities signal the ISP to change specific route attributes for this purpose. Which two attributes should be used for this? (Choose two.)

MED local preference next hop AS path

10.

You are examining the output of the stateful firewall session table. Which state indicates that the router is using an application-layer gateway (ALG) to forward traffic?

Forward NAT ALG Watch

Juniper Networks Certified Internet Specialist (JNCIS-ER)

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