[Sep-2023] H35-260 Free Sample Questions to Practice One Year Update [Q165-Q187]

NO.165 TCP provides connectionless-oriented, best-effort transport services

NO.166 What items are not included in the route advertisement of L3VPN

NO.167 Which of the following identification fields in the data packet header of each protocol layer cannot identify the upper layer data type carried by this layer?

NO.168 A certain wavelength division system is configured with the 1st to 20th waves, using the NS4 single board, and testing the M40 output port with a spectrum analyzer during commissioning. It is found that the optical power of the 20th wave is significantly lower than the other 19th waves. What is the possible reason? ?

NO.169 IP As the core protocol of the network layer in the TCP/IP protocol stack, the fixed part of the packet header has 20 bytes and carries a variety of identification fields to define the transmission of the data packet.
Which of the following statements about the identification field is incorrect?

NO.170 Which of the following descriptions about optical line protection OLP are wrong?

NO.171 The characteristic of the open DWDM system is that there are no special requirements for the optical interface of the multiplexing terminal, and only these interfaces are required to comply with the optical interface standard recommended by ITU-T. The DWDM system adopts wavelength conversion technology to convert the optical signal of the multiplexed terminal into a specific wavelength, and the optical signal of different terminal equipment is converted into different wavelengths that comply with ITU-T recommendations, and then multiplexed.

NO.172 Which of the following is the frame indicated by the VC-4 J1 byte by the AU pointer of the current frame?

NO.173 Which of the following technologies is used in the dynamic BGP MPLS L3VPN to distinguish the same IP address in different VPNs in the BGP protocol?

NO.174 The key technology in the PTN network is IP/MPLS technology. How many levels can MPLS labels be nested?

NO.175 Which of the following messages is sent in unicast mode

NO.176 Which of the following boards can be inserted into the OSN 9800U64 subrack?

NO.177 For ODUK SNCP protection, which of the following types does not apply to the pass-through site being an electrical relay site?

NO.178 Which of the following are the possible reasons for the disconnection of network elements?

NO.179 The ETH_UWK_DOWN alarm indicates that the network port connection is faulty. The possible reasons do not include which of the following?

NO.180 Through the northbound interface, the U2000 can flexibly connect with different third-party network management systems, providing physical storage and reporting data information for the upper-layer network.

NO.181 It is known that the nominal value of single-wave input and output of OAU101 is -16/+4dbm, and the gain range is 2031db. If there is a wave of -20dbm signal at the input end, use DCM (A) (insertion loss 4db), which is To make it reach the nominal output, the gain on the network management should be set to which of the following values

NO.182 In the NG-WDM system, which one of the following boards supports optical line protection?

NO.183 The IP address of the interconnection interface generally uses a 30-bit mask. Which of the following IP addresses can be configured at both ends of the link?

NO.184 When configuring LMSP, there are two switching modes: single turbulent cutting and inserting and double full switching. Single-ended switching does not require self-use protection

NO.185 When using OptiX Datacollector to collect data, it can be collected by network element, which means to collect the fault data of all boards below the network element, or it can be collected by single board to collect the fault data of a single board under the network element.

NO.186 Which of the following statements about MST functional modules are true?

NO.187 The DCN red copper feature between network elements of PTN, which VLAN number is used by default for DCN self-communication between network elements.