Which of the following features belong to the Generic Routing Encapsulation (GRE)
tunneling protocol? Each correct answer represents a complete solution. Choose all that apply.
A.
GRE provides explicit protection against recursive encapsulation.
B.
GRE tunnels are designed to be completely stateful.
C.
GRE provides implicit protection against recursive encapsulation.
D.
GRE supports multiprotocol tunneling.
E.
GRE is used for creating a virtual point-to-point link.
F.
GRE tunnels are designed to be completely stateless.
How can B and F both be correct?
http://www.ietf.org/rfc/rfc2406.txt – doesn’t say
http://searchenterprisewan.techtarget.com/definition/Generic-routing-encapsulation-GRE – this says STATELESS
http://www.cisco.com/c/en/us/support/docs/ip/generic-routing-encapsulation-gre/64565-gre-tunnel-keepalive.html
STATELESS : not stateful
Stateless
GRE Tunnels
GRE tunnels are designed to be completely stateless. This means that each tunnel end-point does not keep any information about the state or availability of the remote tunnel end-point
http://www.cisco.com/c/en/us/support/docs/ip/generic-routing-encapsulation-gre/64565-gre-tunnel-keepalive.html
New 300-101 Exam Questions and Answers Updated Recently:
NEW QUESTION 150
If the total bandwidth is 64 kbps and the RTT is 3 seconds, what is the bandwidth delay product?
A. 8,000 bytes
B. 16,000 bytes
C. 24,000 bytes
D. 32,000 bytes
E. 62,000 bytes
Answer: C
NEW QUESTION 151
What are the default timers for RIPng?
A. Update: 30 seconds Expire: 180 seconds Flush: 240 seconds
B. Update: 20 seconds Expire: 120 seconds Flush: 160 seconds
C. Update: 10 seconds Expire: 60 seconds Flush: 80 seconds
D. Update: 5 seconds Expire: 30 seconds Flush: 40 seconds
Answer: A
NEW QUESTION 152
What is the purpose of the route-target command?
A. It extends the IP address to identify which VRF instance it belongs to.
B. It enables multicast distribution for VRF-Lite setups to enhance IGP routing protocol capabilities.
C. It manages the import and export of routes between two or more VRF instances.
D. It enables multicast distribution for VRF-Lite setups to enhance EGP routing protocol capabilities.
Answer: C
NEW QUESTION 153
A network engineer has configured a tracking object to monitor the reachability of IP SLA 1. In order to update the next hop for the interesting traffic, which feature must be used in conjunction with the newly created tracking object to manipulate the traffic flow as required?
A. SNMP
B. PBR
C. IP SLA
D. SAA
E. ACLs
F. IGP
Answer: B
NEW QUESTION 154
A route map uses an ACL, if the required matching is based on which criteria?
A. addressing information
B. route types
C. AS paths
D. metrics
Answer: A
NEW QUESTION 155
Various employees in the same department report to the network engineer about slowness in the network connectivity to the Internet. They are also having latency issues communicating to the network drives of various departments. Upon monitoring, the engineer finds traffic flood in the network. Which option is the problem?
A. network outage
B. network switching loop
C. router configuration issue
D. wrong proxy configured
Answer: B
NEW QUESTION 156
Which type of handshake does CHAP authentication use to establish a PPP link?
A. one-way
B. two-way
C. three-way
D. four-way
Answer: C
NEW QUESTION 157
Which two authentication protocols does PPP support? (Choose two.)
A. WAP
B. PAP
C. CHAP
D. EAP
E. RADIUS
Answer: BC
NEW QUESTION 158
Which statement is a restriction for PPPoE configuration?
A. Multiple PPPoE clients can use the same dialer interface.
B. Multiple PPPoE clients can use the same dialer pool.
C. A PPPoE session can be initiated only by the client.
D. A PPPoE session can be initiated only by the access concentrator.
Answer: C
NEW QUESTION 159
Refer to the exhibit. Which statement about the configuration is true?
interface Ethernet 0
pppoe-client dial-pool-number 5
pppoe-client ppp-max-payload 1500
interface Dialer 1
ip address negotiated
dialer pool 5
mtu 1492
A. This configuration is incorrect because the MTU must match the ppp-max-payload that is defined.
B. This configuration is incorrect because the dialer interface number must be the same as the dialer pool number.
C. This configuration is missing an IP address on the dialer interface.
D. This configuration represents a complete PPPoE client configuration on an Ethernet connection.
Answer: D
NEW QUESTION 160
A company has their headquarters located in a large city with a T3 frame relay link that connects 30 remote locations that each have T1 frame relay connections. Which technology must be configured to prevent remote sites from getting overwhelmed with traffic and prevent packet drops from the headquarters?
A. traffic shaping
B. IPsec VPN
C. GRE VPN
D. MPLS
Answer: A
NEW QUESTION 161
……
P.S. These New 300-101 Exam Questions Were Updated By PassLeader, You Can Get The Newest 300-101 Dumps In PDF And VCE From — http://www.passleader.com/300-101.html (183q)
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New 300-101 Exam Questions and Answers Updated Recently (4/Nov/2016):
NEW QUESTION 184
What command can you enter to configure an enable password that uses an encrypted password from another configuration?
A. enable secret $abc%!e.Cd34$!ao0
B. enable secret 7 Sabc%!e.Cd34$!ao0
C. enable secret 0 Sabc%U*.Cd34$!ao0
D. enable secret 5 $abc%!e.Cd34$!ao0
E. enable secret 15 $abc%ie.Cd34$!ao0
F. enable secret 6 $abc%!e.Cd34$!ao0
Answer: D
NEW QUESTION 185
A network engineer receives reports about poor voice quality issues at a remote site. The network engineer does a packet capture and sees out-of-order packets being delivered. Which option can cause the VOIP quality to suffer?
A. traffic over backup redundant links
B. misconfigured voice vlan
C. speed duplex link issues
D. load balancing over redundant links
Answer: D
Explanation:
In traditional packet forwarding systems, using different paths have varying latencies that cause out of order packets, eventually resulting in far lower performance for the network application. Also , if some packets are process switched quickly by the routing engine of the router while others are interrupt switched (which takes more time) then it could result in out of order packets. The other options would cause packet drops or latency, but not out of order packets.
NEW QUESTION 186
What is the administrative distance for EBGP?
A. 200
B. 30
C. 70
D. 20
Answer: D
NEW QUESTION 187
Considering the IPv6 address independence requirements, which process do you avoid when you use NPTv6 for translation?
A. rewriting of higher layer information
B. checksum verification
C. ipv6 duplication and conservation
D. IPSEC AH header modification
Answer: A
Explanation:
The IPv6-to-IPv6 Network Prefix Translation (NPTv6) serves as a useful mechanism for implementing address independence in an IPv6 environment. A major benefit associated with NPTv6 is the fact that it avoids the requirement for an NPTv6 Translator to rewrite the transport layer headers which reduces the load on network devices.
cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_nat/configuration/xe-16/nat-xe-16-book/iadnat-asr1k-nptv6.html
NEW QUESTION 188
What is the optimal location from which to execute a debug command that produces an excessive amount of information?
A. Vty lines
B. SNMP commands
C. A console port
D. An AUX port
Answer: A
Explanation:
cisco.com/c/en/us/support/docs/dial-access/integrated-services-digital-networks-isdn-channel-associated-signaling-cas/10374-debug.html
NEW QUESTION 189
A network engineer is configuring the router for NetFlow data exporting. What is required in order for NDE to begin exporting data?
A. Source
B. Flow mask
C. Destination
D. Interface type
E. Traffic type
F. NetFlow version
Answer: C
Explanation:
NetFlow Multiple Export Destinations–To configure redundant NDE data streams, which improves the probability of receiving complete NetFlow data, you can enter the ip flow-export destination command twice and configure a different destination IP address in each command. Configuring two destinations increases the RP CPU utilization, as you are exporting the data records twice.
cisco.com/en/US/docs/general/Test/dwerblo/broken_guide/nde.html#wp1139278
NEW QUESTION 190
Refer to the exhibit. Router 1 cannot ping router 2 via the Frame Relay between them. Which two statements describe the problems? (Chooses two.)
Image URL: examgod.com/plimages/4-Nov-2016-New-300-101-Dumps-with-VCE-an_8F09/passleader-210-065-dumps-1901_thumb.jpg
A. Encapsulation is mismatched.
B. Frame Relay map is configured.
C. DLCI is active.
D. DLCI is inactive or deleted.
E. An access list is needed to allow ping
Answer: AD
Explanation:
Frame Relay: Cannot ping Remote Router :
1-Encapsulation mismatch has occurred.
2-DLCI is inactive or has been deleted.
3-DLCI is assigned to the wrong subinterface.
4-An access list was misconfigured.
5-The frame-relay map command is missing.
6-No broadcast keyword is found in frame-relay map statements.
NEW QUESTION 191
At which layer does Cisco Express Forwarding use adjacency tables to populate addressing information?
A. Layer4
B. Layer 2
C. Layer 1
D. Layer 3
Answer: B
Explanation:
Adjacency table – Nodes in the network are said to be adjacent if they can reach each other with a single hop across a link layer. In addition to the FIB, CEF uses adjacency tables to prepend Layer 2 addressing information. The adjacency table maintains Layer 2 next-hop addresses for all FIB entries.
cisco.com/c/en/us/support/docs/routers/12000-series-routers/47321-ciscoef.html
NEW QUESTION 192
A network engineer wants to ensure an optimal end-to-end delay bandwidth product. The delay is less than 64 KB. Which TCP feature ensures steady state through put?
A. Window scaling
B. Network buffers
C. Round-trip timers
D. TCP acknowledgments
Answer: A
Explanation:
Many options can be carried in a TCP header. Those relevant to TCP performance include Window-scale option. Window-scale option:
This option is intended to address the issue of the maximum window size in the face of paths that exhibit a high-delay bandwidth product.
This option allows the window size advertisement to be right-shifted by the amount specified (in binary arithmetic, a right-shift corresponds to a multiplication by 2).
Without this option, the maximum window size that can be advertised is 65,535 bytes (the maximum value obtainable in a 16-bit field). The limit of TCP transfer speed is effectively one window size in transit between the sender and the receiver. For high-speed, long-delay networks, this performance limitation is a significant factor, because it limits the transfer rate to at most 65,535 bytes per round-trip interval, regardless of available network capacity.
Use of the window-scale option allows the TCP sender to effectively adapt to high-band-width, high-delay network paths, by allowing more data to be held in flight.
The maximum window size with this option is 230 bytes. This option is negotiated at the start of the TCP connection, and can be sent in a packet only with the SYN flag.
Note that while an MTU discovery process allows optimal setting of the maximum-receive-segment-size option, no corresponding bandwidth delay product discovery allows the reliable automated setting of the window-scale option.
cisco.com/c/en/us/about/press/internet-protocol-journal/back-issues/table-contents-5/ipj-archive/article09186a00800c8417.html
NEW QUESTION 193
A network administrator creates a static route that points directly to a multi-access interface, instead of the next-hop IP address. The administrator notices that Cisco Express Forwarding ARP requests are being sent to all destinations. Which issue might this configuration create?
A. Low bandwidth usage
B. High memory usage
C. Cisco Express Forwarding routing loop
D. High bandwidth usage
E. IP route interference
Answer: C
Explanation:
cisco.com/c/en/us/support/docs/ip/express-forwarding-cef/26083-trouble-cef.html
NEW QUESTION 194
Refer to the exhibit. Which three NTP features can be deduced on the router? (choose three)
Image URL: examgod.com/plimages/4-Nov-2016-New-300-101-Dumps-with-VCE-an_8F09/passleader-210-065-dumps-1941_thumb.png
A. only accepts time requests from 192.168.1.1
B. only handle four requests at a time
C. only is in stratum 4
D. only updates its time from 192.168.1.1
E. only accepts time requests from 192.168.1.4
F. only updates its time from 192.168.1.4
Answer: ACF
Explanation:
IOS router defines the following four types of access for NTP:
1) Peer – permits router to respond to NTP requests and accept NTP updates. NTP control queries are also accepted. This is the only class which allows a router to be synchronized by other devices.
2) Serve – permits router to reply to NTP requests, but rejects NTP updates (e.g. replies from a server or update packets from a peer). Control queries are also permitted.
3) Serve-only – permits router to respond to NTP requests only. Rejects attempt to synchronize local system time, and does not access control queries.
4) Query-only – only accepts NTP control queries. No response to NTP requests are sent, and no local system time synchronization with remote system is permitted.
NEW QUESTION 195
……
NEW QUESTION 212
Refer to the exhibit. A network engineer is troubleshooting a DMVPN setup between the hub and the spoke. The engineer executes the command show crypto isakmp sa and observes the output that is displayed. What is the problem?
Image URL: examgod.com/plimages/4-Nov-2016-New-300-101-Dumps-with-VCE-an_8F09/passleader-210-065-dumps-2121_thumb.jpg
A. That ISAKMP is not enabled
B. That ISAKMP is using default settings
C. An incompatible IP sec transform set
D. An incompatible ISAKMP policy
Answer: B
Explanation:
cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/5409-ipsec-debug-00.html
NEW QUESTION 213
……
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New 300-101 Exam Questions and Answers Updated Recently (3/Feb/2017):
NEW QUESTION 231
Refer to exhibit. What is indicated by the show ip cef command for an address?
Image URL: examgod.com/plimages/553c70e0915d_742E/passleader-300-101-dumps-2311.jpg
A. CEF is unable to get routing information for this route.
B. CEF cannot switch packet for this route and passes it to the next best switching method.
C. A valid entry and is pointed to hardware based forwarding.
D. CEF cannot switch packet for this route and drops it.
Answer: B
Explanation:
Glean adjacency – in short when the router is directly connected to hosts the FIB table on the router will maintain a prefix for the subnet rather than for the individual host prefix. This subnet prefix points to a GLEAN adjacency.
Punt adjacency – When packets to a destination prefix can’t be CEF Switched, or the feature is not supported in the CEF Switching path, the router will then use the next slower switching mechanism configured on the router.
NEW QUESTION 232
Refer to Exhibit. Which two reasons for IP SLA tracking failure are likely true? (Choose Two.)
Image URL: examgod.com/plimages/553c70e0915d_742E/passleader-300-101-dumps-2321.jpg
A. The source-interface is configured incorrectly.
B. The destination must be 172.30.30.2 for icmp-echo.
C. A route back to the R1 LAN network is missing in R2.
D. The default route has wrong next hop IP address.
E. The threshold value is wrong.
Answer: BE
NEW QUESTION 233
A network engineer enables OSPF on a Frame Relay WAN connection to various remote sites, but no OSPF adjacencies come up. Which two actions are possible solutions for this issue? (Choose Two.)
A. Change the network type to point-to-multipoint under WAN interface.
B. Enable virtual links.
C. Change the network type to nonbroadcast multipoint access.
D. Configure the neighbor command under OSPF process for each remote site.
E. Ensure that the OSPF process number matches among all remote sites.
Answer: AC
NEW QUESTION 234
A network engineer applies the command ip tcp adjust-mss under interface configuration mode. What is the result?
A. The probability of SYN packet truncation is increased.
B. The UDP session is inversely affected.
C. The probability of dropped or segmented TCP packets is decreased.
D. The optimum MTU value for the interface is set.
Answer: C
NEW QUESTION 235
Which command configures a PPPoE client and specifies dial-on-demand routing functionality?
A. pppoe-client dial-pool-number
B. PPPoE enable
C. interface dialer 1
D. encapsulation PPP
Answer: A
NEW QUESTION 236
……
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(2/June/2017 Updated) New 300-101 Exam Questions:
NEW QUESTION 296
Which type of access list allows granular session filtering for upper-level protocols?
A. content-based access lists
B. context-based access lists
C. reglexive access lists
D. extended access lists
Answer: D
NEW QUESTION 297
Which three configuration parameters can a DHCPV6 pool contain? (Choose three.)
A. domain search list
B. router IP
C. default gateway
D. prefix delegation
E. DNS servers
F. subnet mask
Answer: DEF
NEW QUESTION 298
Which statement about local policy routing is true?
A. It is used to policy route packets that are generated by the device.
B. It requires all packets to be packet switched.
C. It is used to policy route packets that pass through the device.
D. It requires all packets to be CEF switched.
E. It supports IPv4 packets only.
F. It requires an ip address or access list as the matching criteria.
Answer: A
NEW QUESTION 299
Which SNMP verification command shows the encryption and authentication protocols that are used in SNMPV3?
A. show snmp group
B. show snmp user
C. show snmp
D. show snmp view
Answer: B
NEW QUESTION 300
Which type of information is displayed when a network engineer executes the show track 1 command on the router?
A. information about tracking list 1.
B. time to next poll for track object 1.
C. information about the IP route track table.
D. tracking information statistics.
Answer: A
NEW QUESTION 301
Which command sequence can you enter on a router to configure Unicast Reverse Path Forwarding in loose mode?
A. interface GigabitEthernet0/0
ip verigy unicast source reachable-via all
B. interface GigabitEthernet0/0
ip verigy unicast source reachable-via loose
C. interface GigabitEthernet0/0
ip verigy unicast source reachable-via any
D. interface GigabitEthernet0/0
ip verigy unicast source reachable-via rx
Answer: C
NEW QUESTION 302
Where can NetFlow export data for long term storage and analysis?
A. syslog
B. collector
C. another network device
D. flat file
Answer: B
NEW QUESTION 303
Which option is the first task that a device that is configured with NAT64 performs when it receives an incoming IPv6 packet that matches the stateful NAT64 prefix?
A. It translates the IPv6 header into an IPv4 header.
B. It checks the IPv6 packet against the NAT64 stateful prefix.
C. It translates the IPv6 source address to an IPv4 header.
D. It translates the^ IPv4 destination address into a new NAT64 state.
E. It performs an IPv6 route lookup.
Answer: A
NEW QUESTION 304
Which command do you enter to display log messages with a timestamp that includes the length of time since the device was last rebooted?
A. service timestamps log uptime
B. logging facility 20
C. service timestamps debugging localtime msec
D. logging console errors
E. logging monitor 7
F. service timestamps log datetime msec
Answer: A
NEW QUESTION 305
Which option must be configured on a target device to use time stamping to accurately represent response times using IP SLA?
A. Responder
B. Jitter value
C. TCP Connect
D. ICMP Echo
Answer: D
NEW QUESTION 306
Refer to the exhibit. Which option describes why the EIGRP neighbors of this router are not learning routes that are received from OSPF?
router eigrp 1
redistribute ospf 100
network 10.10.10.0 0.0.0.255
auto-summary
!
router ospf 100
network 172.16.0.0 0.0.255.255 area 100
redistribute eigrp 1
A. The subnet defined in OSPF is not part of area 0.
B. Default metrics are not configured under EIGRP.
C. There is no overlap in the subnets advertised.
D. The routing protocols do not have the same AS number.
Answer: B
NEW QUESTION 307
Which two options are requirements for EIGRP authentication? (Choose two.)
A. A crypto map must be configured.
B. The Authentication key must be configured under the interface running EIGRP.
C. The authentication key must be configured within the EIGRP routing configuration.
D. The authentication key IDs must match between two neighbors.
E. A separate key chain must be configured.
F. AN IPsec profile must be configured.
Answer: BD
NEW QUESTION 308
A network engineer is troubleshooting connectivity issues with a directly connected RIPng neighbor. Which command should directly connected RIPng neighbor adjacencies only?
A. router#show ipv6 rip next-hops
B. router#show ip rip neighbors
C. router#show ipv6 routers
D. router#show ipv6 rip database
Answer: A
NEW QUESTION 309
Which security feature can you enable to control access to the vty lines on a router?
A. exec-time out
B. logging
C. username and password
D. transport output
Answer: C
NEW QUESTION 310
A network engineer wants an NTP clients to be able to update the local system without updating or synchronizing with the remote system. Which option for the ntp access-group command is needed to accomplish this?
A. serve
B. query-only
C. serve-only
D. peer
Answer: A
NEW QUESTION 311
……
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