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显示标签为“JN0-643”的博文。显示所有博文

2014年2月24日星期一

Juniper JN0-355 JN0-314 JN0-643 JN0-632 JN0-660認定試験に適する最高の問題集を捧げる

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試験番号:JN0-355問題集
試験科目:Junos Pulse Secure Access, Specialist (JNCIS-SA)
最近更新時間:2014-02-24
問題と解答:全115問
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試験番号:JN0-314問題集
試験科目:Junos Pulse Access Control, Specialist (JNCIS-AC)
最近更新時間:2014-02-24
問題と解答:全222問
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試験番号:JN0-643問題集
試験科目:Enterprise Routing and Switching, Professional (JNCIP-ENT)
最近更新時間:2014-02-24
問題と解答:全201問
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試験番号:JN0-632問題集
試験科目:Juniper Networks Certified Internet Professional, Security (JNCIP-SEC)
最近更新時間:2014-02-24
問題と解答:全169問
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試験番号:JN0-660問題集
試験科目:Service Provider Routing and Switching, Professional (JNCIP-SP)
最近更新時間:2014-02-24
問題と解答:全248問
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NO.1 Which zone is system-defined?
A. security
B. functional
C. junos-global
D. management
Answer: C

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NO.2 Which statement contains the correct parameters for a route-based IPsec VPN?
A. [edit security ipsec]
user@host# show
proposal ike1-proposal {
protocol esp;
authentication-algorithm hmac-md5-96;
encryption-algorithm 3des-cbc;
lifetime-seconds 3200;
}
policy ipsec1-policy {
perfect-forward-secrecy {
keys group2;
}
proposals ike1-proposal;
}
vpn VpnTunnel {
interface ge-0/0/1.0;
ike {
gateway ike1-gateway;
ipsec-policy ipsec1-policy;
}
establish-tunnels immediately;
}
B. [edit security ipsec]
user@host# show
proposal ike1-proposal {
protocol esp;
authentication-algorithm hmac-md5-96;
encryption-algorithm 3des-cbc;
lifetime-seconds 3200;
}
policy ipsec1-policy {
perfect-forward-secrecy {
keys group2;
}
proposals ike1-proposal;
}
vpn VpnTunnel {
interface st0.0;
ike {
gateway ike1-gateway;
ipsec-policy ipsec1-policy;
}
establish-tunnels immediately;
}
C. [edit security ipsec]
user@host# show
proposal ike1-proposal {
protocol esp;
authentication-algorithm hmac-md5-96;
encryption-algorithm 3des-cbc;
lifetime-seconds 3200;
}
policy ipsec1-policy {
perfect-forward-secrecy {
keys group2;
}
proposals ike1-proposal;
}
vpn VpnTunnel {
bind-interface ge-0/0/1.0;
ike {
gateway ike1-gateway;
ipsec-policy ipsec1-policy;
}
establish-tunnels immediately;
}
D. [edit security ipsec]
user@host# show
proposal ike1-proposal {
protocol esp;
authentication-algorithm hmac-md5-96;
encryption-algorithm 3des-cbc;
lifetime-seconds 3200;
}policy ipsec1-policy {
perfect-forward-secrecy {
keys group2;
}
proposals ike1-proposal;
}
vpn VpnTunnel {
bind-interface st0.0;
ike {
gateway ike1-gateway;
ipsec-policy ipsec1-policy;
}
establish-tunnels immediately;
}
Answer: D

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NO.3 A user wants to establish an HTTP session to a server behind an SRX device but is being pointed to
Web page on the SRX device for additional authentication.Which type of user authentication is
configured?
A. pass-through with Web redirect
B. WebAuth with HTTP redirect
C. WebAuth
D. pass-through
Answer: A

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NO.4 Which security or functional zone name has special significance to the Junos OS?
A. self
B. trust
C. untrust
D. junos-global
Answer: D

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NO.5 Which type of Web filtering by default builds a cache of server actions associated with each URL it has
checked?
A. Websense Redirect Web filtering
B. integrated Web filtering
C. local Web filtering
D. enhanced Web filtering
Answer: B

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NO.6 You must configure a SCREEN option that would protect your router from a session table flood. Which
configuration meets this requirement?
A. [edit security screen]
user@host# show
ids-option protectFromFlood {
icmp {
ip-sweep threshold 5000;
flood threshold 2000;
}
}
B. [edit security screen]
user@host# show
ids-option protectFromFlood {
tcp {
syn-flood {
attack-threshold 2000;
destination-threshold 2000;
}
}
}
C. [edit security screen]
user@host# show
ids-option protectFromFlood {
udp {
flood threshold 5000;
}
}
D. [edit security screen]
user@host# show
ids-option protectFromFlood {
limit-session {
source-ip-based 1200;
destination-ip-based 1200;
}
}
Answer: D

Juniper   JN0-632認定資格   JN0-632   JN0-632認定証

NO.7 Which two statements are true about hierarchical architecture? (Choose two.)
A. You can assign a logical interface to multiple zones.
B. You cannot assign a logical interface to multiple zones.
C. You can assign a logical interface to multiple routing instances.
D. You cannot assign a logical interface to multiple routing instances.
Answer: BD

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NO.8 Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by AH.?
(Choose three.)
A. data integrity
B. data confidentiality
C. data authentication
D. outer IP header confidentiality
E. outer IP header authentication
Answer: ACE

Juniper   JN0-632   JN0-632   JN0-632練習問題   JN0-632

NO.9 Which two UTM features require a license to be activated? (Choose two.)
A. antispam
B. antivirus (full AV)
C. content filtering
D. Web-filtering redirect
Answer: AB

Juniper   JN0-632認証試験   JN0-632認定証

NO.10 Which command do you use to display the status of an antivirus database update?
A. show security utm anti-virus status
B. show security anti-virus database status
C. show security utm anti-virus database
D. show security utm anti-virus update
Answer: A

Juniper   JN0-632   JN0-632認定試験

NO.11 Which two statements in a source NAT configuration are true regarding addresses, rule-sets, or rules
that overlap? (Choose two.)
A. Addresses used for NAT pools should never overlap.
B. If more than one rule-set matches traffic, the rule-set with the most specific context takes precedence.
C. If traffic matches two rules within the same rule-set, both rules listed in the configuration are applied.
D. Dynamic source NAT rules take precedence over static source NAT rules.
Answer: AB

Juniper   JN0-632認証試験   JN0-632   JN0-632認証試験

NO.12 Which three statements are true regarding IDP? (Choose three.)
A. IDP cannot be used in conjunction with other Junos security features such as SCREEN options, zones,
and security policy.
B. IDP inspects traffic up to the Application Layer.
C. IDP searches the data stream for specific attack patterns.
D. IDP inspects traffic up to the Presentation Layer.
E. IDP can drop packets, close sessions, prevent future sessions, and log attacks for review by network
administrators when an attack is detected.
Answer: BCE

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NO.13 Which configuration keyword ensures that all in-progress sessions are re-evaluated upon committing a
security policy change?
A. policy-rematch
B. policy-evaluate
C. rematch-policy
D. evaluate-policy
Answer: A

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NO.14 You want to allow your device to establish OSPF adjacencies with a neighboring device connected to
interface ge-0/0/3.0. Interface ge-0/0/3.0 is a member of the HR zone.Under which configuration
hierarchy must you permit OSPF traffic?
A. [edit security policies from-zone HR to-zone HR]
B. [edit security zones functional-zone management protocols]
C. [edit security zones protocol-zone HR host-inbound-traffic]
D. [edit security zones security-zone HR host-inbound-traffic protocols]
Answer: D

Juniper認証試験   JN0-632   JN0-632   JN0-632問題集

NO.15 A network administrator has configured source NAT, translating to an address that is on a locally
connected subnet. The administrator sees the translation working, but traffic does not appear to come
back.What is causing the problem?
A. The host needs to open the telnet port.
B. The host needs a route for the translated address.
C. The administrator must use a proxy-arp policy for the translated address.
D. The administrator must use a security policy, which will allow communication between the zones.
Answer: C

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NO.16 Which two statements regarding symmetric key encryption are true? (Choose two.)
A. The same key is used for encryption and decryption.
B. It is commonly used to create digital certificate signatures.
C. It uses two keys: one for encryption and a different key for decryption.
D. An attacker can decrypt data if the attacker captures the key used for encryption.
Answer: AD

Juniper   JN0-632   JN0-632   JN0-632問題集   JN0-632認定資格

NO.17 Which UTM feature requires a license to function?
A. integrated Web filtering
B. local Web filtering
C. redirect Web filtering
D. content filtering
Answer: A

Juniper   JN0-632   JN0-632問題集

NO.18 Regarding content filtering, what are two pattern lists that can be configured in the Junos OS? (Choose
two.)
A. protocol list
B. MIME
C. block list
D. extension
Answer: BD

Juniper認定試験   JN0-632問題集   JN0-632認証試験

NO.19 Which statement describes an ALG?
A. An ALG intercepts and analyzes all traffic, allocates resources, and defines dynamic policies to deny
the traffic.
B. An ALG intercepts and analyzes the specified traffic, allocates resources, and defines dynamic policies
to permit the traffic to pass.
C. An ALG intercepts and analyzes the specified traffic, allocates resources, and defines dynamic policies
to deny the traffic.
D. An ALG intercepts and analyzes all traffic, allocates resources, and defines dynamic policies to permit
the traffic to pass.
Answer:

NO.20 Which two statements regarding external authentication servers for firewall user authentication are
true? (Choose two.)
A. Up to three external authentication server types can be used simultaneously.
B. Only one external authentication server type can be used simultaneously.
C. If the local password database is not configured in the authentication order, and the configured
authentication server is unreachable, authentication is bypassed.
D. If the local password database is not configured in the authentication order, and the configured
authentication server rejects the authentication request, authentication is rejected
Answer: BD

Juniper練習問題   JN0-632   JN0-632   JN0-632認定資格

2013年12月13日星期五

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Exam Code: JN0-643
Exam Name: Juniper (Enterprise Routing and Switching, Professional (JNCIP-ENT))
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Total Q&A: 103 Questions and Answers
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NO.1 Click the Exhibit button.
Referring to the output in the exhibit, why does the router prefer the path toward interface ge0/0/0.0 for the
20.0.0.0/8 route?
A. The origin is IGP.
B. The origin is unknown.
C. The AS path is longer.
D. Multihop is enabled.
Answer: A

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NO.2 Click the Exhibit button.
Based on the output shown in the exhibit, which protocol is configured?
A. MSTP
B. RSTP
C. STP
D. VSTP
Answer: D

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NO.3 Click the Exhibit button.
The exhibit shows the output of an OSPF router LSA.
Which interface ID represents the router's loopback address?
A. ID 10.1.1.0
B. ID 10.0.3.4
C. ID 10.0.3.3
D. ID 10.0.2.4
Answer: B

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NO.4 Port authentication falls back to Captive Portal. In which two scenarios would the port
authentication move back to 802.1X? (Choose two.)
A. if any MAC RADIUS request packet is received on the interface and if there are no sessions in
authenticated/authenticating state
B. if Captive Portal is deactivated on the interface
C. if the user gets logged out
D. if the EAP packet is received on the interface and if there are no sessions in
authenticated/authenticating state
Answer: B,D

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NO.5 When 802.1X, MAC-RADIUS, and Captive Portal are enabled on an interface, which
authentication sequence occurs?
A. The authentication sequence is based on the order of the configuration.
B. If MAC-RADIUS is rejected, Captive Portal will start. If Captive portal is timed out, 802.1X will start.
C. If 802.1X times out, then MAC-RADIUS will start. If MAC-RADIUS is timed out by the RADIUS server,
then Captive Portal will start.
D. If 802.1X times out, then MAC-RADIUS will start. If MAC-RADIUS is rejected by the RADIUS server,
then Captive Portal will start.
Answer: D

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NO.6 Click the Exhibit button.
A user on port ge-0/0/12 fails an 802.1x authentication attempt.
What is the next action of Switch A?
A. It puts the Authenticator in the HELD status where all EAPOL packets are discarded until the default
hold timer expires.
B. It communicates with the RADIUS server to confirm the user's password.
C. It transmits an EAP-Identity-Request packet immediately after it sends out EAP-Failure.
D. It tries to authenticate the user using MAC radius authentication.
Answer: C

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NO.7 Click the Exhibit button.
Based on the configuration in the exhibit, why are you seeing drops in the best-effort queue on the SRX
Series platform.?
A. The drop-profile fill level is set too low.
B. Packets are dropped by a firewall policy.
C. The best-effort queue is being shaped.
D. The scheduler is not being applied correctly.
Answer: C

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NO.8 A medium-sized enterprise has some devices that are 802.1X capable and some that are not. Any
device that fails authentication must be provided limited access through a VLAN called NONAUTH. How
do you provide this access?
A. Configure NONAUTH VLAN as the guest VLAN.
B. Configure NONAUTH VLAN as the server-reject VLAN.
C. Configure NONAUTH VLAN as the guest VLAN and the server-reject VLAN
D. Configure a separate VLAN for each type of user: 802.1X and non-802.1X.
Answer: C

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NO.9 What is the default LLDP timeout?
A. 60 seconds
B. 90 seconds
C. 120 seconds
D. infinite
Answer: C

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NO.10 Click the Exhibit button.
In the exhibit, which statement about the ABR between Area 8 and Area 2 is true?
A. The router has connectivity to all areas.
B. The router has connectivity to Area 8 only.
C. The router has connectivity to Area 2 only.
D. The router has connectivity to all routers in Area 8 and Area 2.
Answer: D

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NO.11 Click the Exhibit button.
Based on the output shown in the exhibit, why is VSTP not working for VLAN 100?
A. No interfaces are assigned to VLAN 100.
B. Your MSTI is misconfigured.
C. RSTP is configured in addition to VSTP.
D. No native VLAN is configured.
Answer: A

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NO.12 A user complains about connectivity problems from their IP address (10.1.1.87) to a server
(10.65.1.100).Which Junos command can help verify connectivity in the network? (Choose two.)
A. mroute
B. traceoptions
C. ping
D. clear bgp neighbor
Answer: B,C

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NO.13 Which two LSA types are only generated by an ABR router? (Choose two.)
A. ASBR summary LSA (Type 4)
B. ASBR LSA (Type 5)
C. Summary LSA (Type 3)
D. Router LSA (Type 1)
Answer: A,C

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NO.14 If your WAN-edge router is multihomed to different ISPs, which two BGP attributes would you modify to
affect outbound traffic? (Choose two.)
A. MED
B. origin
C. local preference
D. community
Answer: B,C

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NO.15 Click the Exhibit button.
Host 1, Host 2, and Host 3 are connected to Switch A on interface ge-0/0/2. Host 1 and Host 2 have been
authenticated through 802.1X, however Host 3 does not have an 802.1X supplicant.
Referring to the configuration in the exhibit, how can Host 3 be authenticated?
A. secure-authentication option of HTTP or HTTPS must be configured for Captive Portal.
B. MAC RADIUS authentication must be configured for Host 3 instead of Captive Portal.
C. A new authentication-profile must be configured because 802.1X and Captive Portal cannot have the
same authentication-profile.
D. The 802.1X server failback feature must be configured for Host 3 to allow non-802.1X clients to
authenticate.
Answer: B

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2013年5月18日星期六

Juniper certification JN0-643 exam training programs

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Exam Code: JN0-643
Exam Name: Juniper (Enterprise Routing and Switching, Professional (JNCIP-ENT))

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NO.1 A medium-sized enterprise has some devices that are 802.1X capable and some that are not. Any
device that fails authentication must be provided limited access through a VLAN called NONAUTH. How
do you provide this access?
A. Configure NONAUTH VLAN as the guest VLAN.
B. Configure NONAUTH VLAN as the server-reject VLAN.
C. Configure NONAUTH VLAN as the guest VLAN and the server-reject VLAN
D. Configure a separate VLAN for each type of user: 802.1X and non-802.1X.
Answer: C

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NO.2 If your WAN-edge router is multihomed to different ISPs, which two BGP attributes would you modify to
affect outbound traffic? (Choose two.)
A. MED
B. origin
C. local preference
D. community
Answer: B,C

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NO.3 Which two LSA types are only generated by an ABR router? (Choose two.)
A. ASBR summary LSA (Type 4)
B. ASBR LSA (Type 5)
C. Summary LSA (Type 3)
D. Router LSA (Type 1)
Answer: A,C

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NO.4 When 802.1X, MAC-RADIUS, and Captive Portal are enabled on an interface, which
authentication sequence occurs?
A. The authentication sequence is based on the order of the configuration.
B. If MAC-RADIUS is rejected, Captive Portal will start. If Captive portal is timed out, 802.1X will start.
C. If 802.1X times out, then MAC-RADIUS will start. If MAC-RADIUS is timed out by the RADIUS server,
then Captive Portal will start.
D. If 802.1X times out, then MAC-RADIUS will start. If MAC-RADIUS is rejected by the RADIUS server,
then Captive Portal will start.
Answer: D

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NO.5 Port authentication falls back to Captive Portal. In which two scenarios would the port
authentication move back to 802.1X? (Choose two.)
A. if any MAC RADIUS request packet is received on the interface and if there are no sessions in
authenticated/authenticating state
B. if Captive Portal is deactivated on the interface
C. if the user gets logged out
D. if the EAP packet is received on the interface and if there are no sessions in
authenticated/authenticating state
Answer: B,D

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NO.6 Click the Exhibit button.
Based on the configuration in the exhibit, why are you seeing drops in the best-effort queue on the SRX
Series platform.?
A. The drop-profile fill level is set too low.
B. Packets are dropped by a firewall policy.
C. The best-effort queue is being shaped.
D. The scheduler is not being applied correctly.
Answer: C

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NO.7 Click the Exhibit button.
Referring to the output in the exhibit, why does the router prefer the path toward interface ge0/0/0.0 for the
20.0.0.0/8 route?
A. The origin is IGP.
B. The origin is unknown.
C. The AS path is longer.
D. Multihop is enabled.
Answer: A

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NO.8 Click the Exhibit button.
Host 1, Host 2, and Host 3 are connected to Switch A on interface ge-0/0/2. Host 1 and Host 2 have been
authenticated through 802.1X, however Host 3 does not have an 802.1X supplicant.
Referring to the configuration in the exhibit, how can Host 3 be authenticated?
A. secure-authentication option of HTTP or HTTPS must be configured for Captive Portal.
B. MAC RADIUS authentication must be configured for Host 3 instead of Captive Portal.
C. A new authentication-profile must be configured because 802.1X and Captive Portal cannot have the
same authentication-profile.
D. The 802.1X server failback feature must be configured for Host 3 to allow non-802.1X clients to
authenticate.
Answer: B

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NO.9 Click the Exhibit button.
In the exhibit, which statement about the ABR between Area 8 and Area 2 is true?
A. The router has connectivity to all areas.
B. The router has connectivity to Area 8 only.
C. The router has connectivity to Area 2 only.
D. The router has connectivity to all routers in Area 8 and Area 2.
Answer: D

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NO.10 Click the Exhibit button.
Based on the output shown in the exhibit, why is VSTP not working for VLAN 100?
A. No interfaces are assigned to VLAN 100.
B. Your MSTI is misconfigured.
C. RSTP is configured in addition to VSTP.
D. No native VLAN is configured.
Answer: A

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NO.11 Click the Exhibit button.
A user on port ge-0/0/12 fails an 802.1x authentication attempt.
What is the next action of Switch A?
A. It puts the Authenticator in the HELD status where all EAPOL packets are discarded until the default
hold timer expires.
B. It communicates with the RADIUS server to confirm the user's password.
C. It transmits an EAP-Identity-Request packet immediately after it sends out EAP-Failure.
D. It tries to authenticate the user using MAC radius authentication.
Answer: C

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NO.12 What is the default LLDP timeout?
A. 60 seconds
B. 90 seconds
C. 120 seconds
D. infinite
Answer: C

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NO.13 Click the Exhibit button.
The exhibit shows the output of an OSPF router LSA.
Which interface ID represents the router's loopback address?
A. ID 10.1.1.0
B. ID 10.0.3.4
C. ID 10.0.3.3
D. ID 10.0.2.4
Answer: B

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NO.14 Click the Exhibit button.
Based on the output shown in the exhibit, which protocol is configured?
A. MSTP
B. RSTP
C. STP
D. VSTP
Answer: D

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NO.15 A user complains about connectivity problems from their IP address (10.1.1.87) to a server
(10.65.1.100).Which Junos command can help verify connectivity in the network? (Choose two.)
A. mroute
B. traceoptions
C. ping
D. clear bgp neighbor
Answer: B,C

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