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試験番号：JN0-643問題集
試験科目：Juniper 「Enterprise Routing and Switching, Professional (JNCIP-ENT)」
問題と解答：全114問
試験番号：JN0-632問題集
試験科目：Juniper 「Juniper Networks Certified Internet Professional, Security (JNCIP-SEC)」
問題と解答：全169問
試験番号：JN0-660問題集
試験科目：Juniper 「Service Provider Routing and Switching, Professional」
問題と解答：全171問
試験番号：JN0-332問題集
試験科目：Juniper 「Juniper Networks Certified Internet Specialist, SEC (JNCIS-SEC)」
問題と解答：全406問
試験番号：JN0-101問題集
試験科目：Juniper 「JNCIA-JUNOS EXAM OBJECTIVES」
問題と解答：全190問
試験番号：JN0-360問題集
試験科目：Juniper 「Juniper Networks Certified Internet Specialist (JNCIS-SP)」
問題と解答：全143問
購入前にお試し,私たちの試験の質問と回答のいずれかの無料サンプルをダウンロード：http://www.it-passports.com/JN0-643.html
NO.1 What is the default LLDP timeout?
A. 60 seconds
B. 90 seconds
C. 120 seconds
D. infinite
Answer: C
Juniper JN0-643認定証 JN0-643認証試験 JN0-643
NO.2 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
Juniper認定試験 JN0-643 JN0-643 JN0-643 JN0-643練習問題
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
Juniper問題集 JN0-643認定試験 JN0-643過去問 JN0-643参考書 JN0-643参考書
NO.4 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
Juniper問題集 JN0-643 JN0-643認証試験 JN0-643問題集
NO.5 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
Juniper JN0-643認定試験 JN0-643
NO.6 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
Juniper参考書 JN0-643 JN0-643認定試験 JN0-643
NO.7 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
Juniper認証試験 JN0-643参考書 JN0-643認定試験 JN0-643参考書 JN0-643
NO.8 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
Juniper認定証 JN0-643認定試験 JN0-643 JN0-643 JN0-643認定証 JN0-643練習問題
NO.9 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
Juniper JN0-643 JN0-643
NO.10 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
Juniper JN0-643 JN0-643
NO.11 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
Juniper認証試験 JN0-643認定資格 JN0-643認定資格 JN0-643参考書
NO.12 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
Juniper参考書 JN0-643 JN0-643
NO.13 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
Juniper認証試験 JN0-643認定資格 JN0-643練習問題
NO.14 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
Juniper練習問題 JN0-643 JN0-643参考書 JN0-643
NO.15 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
Juniper JN0-643 JN0-643認証試験 JN0-643認定資格 JN0-643問題集
