Yet another blog about Monkeys and IT
CCNA
CCNA Exploration 4 Accessing the WAN – Final exam
Apr 30th
1. A network administrator can ping the Perth router, but gets a ‘Password Required but None Set’ message when trying to connect remotely via Telnet. Which command sequence must be applied to the Perth router to allow remote access?
- Router(config)# line console 0 Router(config-line)# login Router(config-line)# password cisco
- Router(config)# line vty 0 4 Router(config-line)# login Router(config-line)# password cisco
- Router(config)# line virtual terminal Router(config-line)# enable login Router(config-line)# password cisco
- Router(config)# line vty 0 4 Router(config-line)# enable secret Router(config-line)# password cisco
- Router(config)# enable secret cisco Router(config)# enable cisco
2. When Frame Relay encapsulation is used, what feature provides flow control and exchanges information about the status of virtual circuits?
- LCP
- LMI
- DLCI
- Inverse ARP (more…)
CCNA Exploration 4 Accessing the WAN – Chapter 8 exam
Apr 21st
01. Which two pieces of information are typically found on a logical network diagram? (Choose two.)
- cable types
- connector types
- interface identifiers
- DLCI for virtual circuits
- operating system versions
02. Excessive broadcasts are generally a symptom of a problem at which layer?
- physical
- data link
- network
- transport (more…)
CCNA Exploration 4 Accessing the WAN – Chapter 7 exam
Apr 15th
01.Refer to the exhibit. A network technician determines DHCP clients are not working properly. The clients are receiving IP configuration information from a DHCP server configured on the router but cannot access the Internet. From the output in the graphic, what is the most likely problem?
- The DHCP server service is not enabled.
- The inside interface for DCHP is not defined.
- The DHCP pool is not bound to the interface.
- The pool does not have a default router defined for the clients.
- All the host addresses have been excluded from the DHCP pool.
02.Refer to the exhibit. On the basis of the configuration shown, how should the pool of the excluded addresses be assigned to key hosts on the network, such as router interfaces, printers, and servers?
- The addresses are statically assigned by the network administrator.
- The DHCP server dynamically assigns the addresses.
- The addresses must be listed under the DHCP pool of addresses before they are available for static assignment.
- The addresses must be listed under the DHCP pool of addresses before they are available for dynamic assignment. (more…)
CCNA Exploration 4 Accessing the WAN – Chapter 6 exam
Apr 11th
01. Which two statements about DSL are true? (Choose two.)
- users are on a shared medium
- uses RF signal transmission
- local loop can be up to 3.5 miles (5.5km)
- physical and data link layers are defined by DOCSIS
- user connections are aggregated at a DSLAM located at the CO
02. Which two Layer 1 requirements are outlined in the Data-over-Cable Service Interface Specification (DOCSIS)? (Choose two.)
- channel widths
- access method
- maximum data rate
- modulation techniques
- compression techniques (more…)
CCNA Exploration 4 Accessing the WAN – Chapter 5 exam
Apr 2nd
01. By default, how is IP traffic filtered in a Cisco router?
- blocked in and out of all interfaces
- blocked on all inbound interfaces, but permitted on all outbound interfaces
- permitted in and out of all interfaces
- blocked on all outbound interfaces, but permitted on all inbound interfaces
02. Which three parameters can ACLs use to filter traffic? (Choose three.)
- packet size
- protocol suite
- source address
- destination address
- source router interface
- destination router interface (more…)
CCNA Exploration 4 Accessing the WAN – Chapter 4 exam
Mar 13th
01. Which two statements are true regarding network security? (Choose two.)
- Securing a network against internal threats is a lower priority because company employees represent a low security risk.
- Both experienced hackers who are capable of writing their own exploit code and inexperienced individuals who download exploits from the Internet pose a serious threat to network security.
- Assuming a company locates its web server outside the firewall and has adequate backups of the web server, no further security measures are needed to protect the web server because no harm can come from it being hacked.
- Established network operating systems like UNIX and network protocols like TCP/IP can be used with their default settings because they have no inherent security weaknesses.
- Protecting network devices from physical damage caused by water or electricity is a necessary part of the security policy. (more…)
CCNA Exploration 4 Accessing the WAN – Chapter 3 exam
Mar 8th
01. Which best describes the benefit of using Frame Relay as opposed to a leased line or ISDN service?
- Customers can define their virtual circuit needs in far greater combinations, with increments as small as 64 kbps.
- Customers pay for an end-to-end connection that includes the local loop and the network link.
- Customers only pay for the local loop and the bandwidth they purchase from the network provider.
- Connecting new sites requires new lower cost circuit installations when compared to ISDN dialup costs or adding additional hardware for leased service.
02. What two methods does Frame Relay technology use to process frames that contain errors? (Choose two.)
- Frame Relay services depend on the upper layer protocols to handle error recovery.
- It requires the receiving device to request that the sender retransmit erroneous frames.
- FECN, BECN, and DE bits are set in the frames to minimize errors.
- The receiving device drops any frames that contain errors without notifying the sender.
- The frame relay switch notifies the sender that errors were detected. (more…)
CCNA Exploration 4 Accessing the WAN – Chapter 2 exam
Feb 21st
01. Which two statements are true about time-division multiplexing (TDM)? (Choose two.)
- TDM relies on Layer 3 protocols to operate.
- Multiple channels can transmit over a single link.
- Original data streams must be reconstructed at the destination.
- TDM methods vary depending on the Layer 2 protocol that is used.
- It allows information from multiple channels to be allocated bandwidth on multiple wires.
02. What does the demarcation point represent in data communication physical circuits?
- DTE/DCE interface on the device connecting to the Internet
- location of the firewall or router
- physical point at which the public network ends and the private customer network begins
- tag assigned to the physical block where a cross-connect occurs (more…)
CCNA Exploration 4 Accessing the WAN – Chapter 1 exam
Nov 3rd
01. At which two layers of the OSI model does a WAN operate? (Choose two.)
- Physical Layer
- Data Link Layer
- Network Layer
- Transport Layer
- Presentation Layer
- Application Layer
02. Which three WAN devices can be found in the cloud? (Choose three.)
- ATM switches
- core routers
- CSU/DSU
- Ethernet switches
- Frame Relay switches
- Repeaters (more…)
CCNA Exploration 3 LAN Switching and Wireless– Final exam
Oct 7th
1. Refer to the exhibit. A network administrator needs to add IP phones to the network. To which devices should the IP phones connect?
- AS1 and AS2
- DS1 and DS2
- DS1, DS2, and CS1
- AS1, AS2, DS1, and DS2
2. Which CLI mode allows users to access all device commands, such as those used for configuration, management, and troubleshooting?
- user EXEC mode
- privileged EXEC mode
- global configuration mode
- interface configuration mode (more…)
CCNA Exploration 3 LAN Switching and Wireless–Chapter 7 Exam
Sep 27th
01. Which two conditions have favored adoption of 802.11g over 802.11a? (Choose two.)
- 802.11a suffers from a shorter range than 802.11g.
- The 2.4 GHz frequency band is not as crowded as the 5 GHz band.
- 802.11a is more susceptible to RF interference from common commercial items.
- 802.11a uses a more expensive modulation technique than 802.11g.
- 802.11g is backward compatible with 802.11b, but 802.11a is not.
02. Which two statements concerning network security are accurate? (Choose two.)
- 802.11i uses 3DES for encryption.
- Open authentication uses no client or AP verification.
- The 802.11i protocol is functionally identical to WPA.
- 802.11i incorporates a RADIUS server for enterprise authentication.
- A wireless client first associates with an AP and then authenticates for network access. (more…)
