Which of the following is the LARGEST MTU for a standard Ethernet frame?
A. 1452
B. 1492
C. 1500
D. 2304
Under which of the following layers of the OSI do ATM cells operate?
A. Data link
B. Network
C. Session
D. Transport
E. Presentation
Devices on a network will need to obtain DHCP leases from a server on a different network. Which of the following must the engineer Implement for DHCP to forward requests to the designated server?
A. Trunking
B. A forward lookup zone
C. A proxy server
D. An IP helper
A building is equipped with light sensors that turn off the fluorescent lights when natural light is above a certain brightness. Users report experiencing network connection issues only during certain hours. The west side of the building experiences connectivity issues in the morning hours and the east side near the end of the day. At night the connectivity issues affect the entire building. Which of the following could be the cause of the connectivity issues?
A. Light sensors are interfering with the network
B. EMI from the lights is interfering with the network cables
C. Network wiring is run perpendicular to electrical conduit
D. Temperature changes are causing attenuation in copper cabling
A wireless network is set up in a mesh configuration that has experienced recent growth. Some of the access points are four hops away in the mesh network. Users at these access points are reporting slow download speeds despite being the sole users on the access point. Which of the following would BEST resolve this issue?
A. Add more access points to the mesh network.
B. Increase transmit power levels on the access points.
C. Physically connect more access points.
D. Change the antenna type on the WAPs.
A network technician receives a new firmware update for a network device. The technician wants to ensure the file has not been tampered with. Which of the following techniques should the technician use to ensure the integrity of the file?
A. Cyclic redundancy check
B. System integrity check
C. Hash comparison
D. Root guard
A network engineer has connected the storefront with the maintenance shed on the other side of a golf course using 802.11 wireless bridges and omnidirectional antennas. However, the signal strength is too weak. Which of the following is the MOST efficient and cost-effective solution to solve the issue?
A. Replace the omnidirectional antennas with unidirectional antennas.
B. Put protective enclosures around the omnidirectional antennas to prevent damage from golf balls.
C. Replace the 802.11 wireless standard and use GSM instead.
D. Replace the wireless bridges with wireless routers.
Which of the following technologies should be used in high-throughput network to reduce network overhead?
A. iSCSI
B. QoS tags
C. Port aggregation
D. Jumbo frames
A technician has been asked to diagnose problems with DHCP addressing on a VLAN. The DHCP server responds to pings from the technician's machine. Which of the following should the technician use to help diagnose the problem?
A. Packet sniffer
B. netstat
C. nslookup
D. Spectrum analyzer
A technician set up a small network, which is not connected to the company LAN, for several employees to play a peer-to-peer networking game during breaks. The users know how to set up the software, but they do not know anything about networking. The technician has wired the network but has not configured any networking information and does not want the employees to have access outside the network. Which of the following should be used to apply addressing to the network?
A. NAT
B. VLSM
C. APIPA
D. CIDR